PROCEEDINGS OF THE
NUCLEAR PHYSICS AND SOLID STATE PHYSICS SYMPOSIUM
PUNE, DECEMBER 26-30, 1977
VOLUME 20C
SOLID STATE PHYSICS
UNIVERSTAT33IBUOTHEKHANDOVER
TECHNISCHE
INFORMA7 iONSSlBLIOTHEK
ORGANISED BY THE
DEPARTMENT OF ATOMIC ENERGY
GOVERNMENT OF INDIA
CONTENTS
I. LOW TEMPERATURE BEHAVIOUR OF SOLIDS AND
LIQUIDS
Orbital Precession in Superfluid He-A : P. Bhattacharyya 1
Coherence Factors in Excitonlc Insulators : R. E, Amrltkar
and N. Kumar 4
Coupling of the Martensitic Transformation with the Super¬
conducting Transition : B. K, Chakrabarti, B. P. Barua and
S.K. Sinha > 7
Effect of Transverse dC Injection on the I-V Characteristici
of Superconducting Microbridges : G. Dharmadurai and
B. A, Ratnam 11
II. ELECTRONICS PROPERTIES OF SOLIDS
Positron Angular Correlation Studies in Iron-Nickel
Alloys : T. Nagarajan, A. Narayanasamy, S..Ramasamyand V. Manohar 15
Cluster Model Studies of LiCl In Water s A. Seth,E.J. Baerends and T. Paakkari
4
18
Temperature Dependence of Positron Annihilation in
Vanadium Hydrides : S. MantI and R. M. Singru 21
Electron Momentum Distribution and Compton Profiles in
Vanadiums K.R.K. Gandhi and R. M. Singru 23
Two-dimensional Positron Angular Correlation Curves in
Copper : R. M. Singru and P. E. Mijnarends
Theoretical Compton Profiles in Vanadium and Palladium
Hydrides : K. R.K. Gandhi, R. M. Singru and D. G. Kanhere
Temperature-Dependent Electronic Contribution to Shock
Hugoniot Equation of State of Aluminium : B.K. Godwal,
S.K. Sikka and R. Chidambaram
26
29
Positron Annihilation Calculation for High 2 Metals Using
RAPW Functions : K. lyakutti and V. Devanathan 32
33
-i-
-11 ~
L&tiice Parameter and Electrical Relativity of
Uranium Cat-tide to 120 KBAR : Rita Kapoor,
/, Saukara Saotry and K. Govinda Rajan
On Certain Functional Analytical Aspects of Band-
Edg» States j R. Subramanian and K. V. Bhagwat
Effect of Correlation on the Band-Structure of
Magnesium : R. Asokamani, R, S. Rao, K. Iyakuttiand V. Devanathatt
ATA and the Complex Energy Bands of Binary Alloys s
N, C. Debnath and S. Chatterjee
An Ablnltlo Study of Plasma Oscillations in free ElectrGas : R. K. Kher and M, G. Bhide
Donor Energy States in GaP ; M. Robert Singh andS. Balasubramanian
On the Polaraalc Stata s T. K, Mitra
Dynamical Correlations in a Classical One ComponentPlasma ;*H. B, Singh, Aruna Sharma and K. N. Pathak
Frequency Dependence of the Local Field Factor of an
Electron Liquid i B.K. Rao, S.8, Mandal and D. N.Tripafehy
Electron-Electron Umklapy Scattering Processes inSodium j O.'N, Awasthi and S. Sail eh
Bound State of Two Collective Excitations in an
Electron Gas s D. N, Tripathy and P. Deo
Plasmon Dispersion in H Metal for Large WaveVectors : R.K. Pal and D, N. Tripathy
New Trends in ESCA Shifts : M. N. Ghatikar andB. D, Padalia
Metal Non-Metal Transition in Oxides of TransitionMetals - A Theoretical Study : M. L. Kalra and
U, N. Upadhyaya
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Paa
The Impurity Dependent Intrinsic Resistivity of Indium :
S. M. Sharma 75
79
Stopping Power of Solids for Energetic Ions in Planar
Channeling : Anand P. Pathak
Low Temperature Electrical Resistivity of Potassium, s
N. C. Mohapatra and P. K. Misra83
Evaluation of Overlap Integrals in SjC : Manikarnika Lagu 87
Electronic Energy States of Films and Surfaces :
M. Nandi and S. Chatterjee go
Determination of Colloidal Size by Positron AngularCorrelation : T. Nagarajaa, S. Ramasamy,.Y. V. G. S. Murti and N. Sucheta 89
Effect of Pressure on the Electrical Resistance of the
Charge Transfer Complex Benzidine-DDQ : A. V. Nalini,
S, Chatterjee, S. V. Subramanyam and S. N. Vaidya 90
Electrical Resistivity due to Dislocation only :
Debadideb Bhattacharya aad A. S. Ghosh 94
Recovery in Neutron Irradiated Tungsten '. M. Sf Anand,
a. M. Pande and R. P. Agarwala 98
Electrical Conductivity Measurements in Ammonium
Sulphate : N. Hariharan and Georgina Mary Rani 101
Comparative I-V Studies on Thin Films of Copper Oxide,
Ferric Oxide and Copper Ferrite : S. A. Patll, A. U. Patil,
A. Y. Khot, R.N. Patll and B. G. Brahmecha 102
Electrical Conductivity and Microhardnesa of Single
Crystals of Potassium Chloride : J. R. Pandya and R. T. Shah 104
Decay and Recovery of Internal Voltage in MIM Sandwich
Structures Using Organic Molecular Films as Dielectric • 105
A.K. Kapil and V.K. Srivastava
Dielectric Constant Measurement of Copper Ferrite Thick
Films at Microwave Frequency : A. U. Patll, S. R. Sawant,
J. I. PawarandR. N. Patil 106
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Page
Temperature Dependence of Dielectric Loss in OrganicMolecular Films : A. K. KapiL S. K. Gupta and
V„K. Srivastava 108
Electrical Conductivity and Dielectric Properties, of Some
Cobalt-Zinc and Barium Ferrites : V. R. K. Murthy and
J, Sobhanadri 10q
Current-Voltage Characteristics of Lead Zirconate~
Lead Titanate SolidlSolutions : C. P. De, P. S. Prasad
and Ramji La 210
Variation of Surface Space Charge Layer and
Potential with Temperature in Silver Bromide Crystals :
Mahendra Singh and O. P. Khandelwai 111
Sensitization of Selenium Photoreceptors by PhthalocyantnePigments : P. C. Meaendru, S„ Radbakrishnan and
N. L. Pathak UZ
Avalanche Breakdown in Ferroelectric BaT10_ and KNbO
Single Crystals : V. G. Kher, K. R. Bagree and
D. A. Deshpande 113
Photodielectric Effect (PDE) in Pbl, Single Crystal :
P.K. C. Pillai, R.G. Mendiratta, C. K. Pillai and
R. Nath 117
Annealing Behaviour and Hall Effect in Thin LayeredCu-Sn Films : K. Narayandas, M. Radhakrishnan and
C. Balasubramanian 121
Conductivity of Thin Bismuth Films at Microwave
Frequency ; S. A, Gangal and R. N. Karekar 124
Field Dependence of Resistance and Grain Size Variation
with Substrate Temperature in Discontinuous Sn Films :
M. S. Jagadeesh and Damodara V, Das*
27
Preparation of Alloys Cu. Se2 Sn and Study of Their
Electrical Conductivities : ueetha Subramanian and
S. Srinlvasan 130
The Klfect of Temperature an Evaporated Stearic Acid Film
Capacitors : R. KasUingam, C. Balasubramanian and
M. Radhakrishnan - 133
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Page
Distribution of Dipoles in VC : VAc Copolymer Films :
N. P. Gupta, Kamlesh Jain and P. C. Mehendru 136
Charge Transport Mechanism in Polyvinyl Fluoride Films :
P. C. Mehendru, N. L. Pathak and Suresh Chand 139
Electronic Conduction in Eosin Doped Polyvinyl Alcohol :
P. C. Mehendru, N. L. Pathak and S. Radhakrishnan 142
Electrical Properties of Poiyferrocene Films :
Shireesh D, Phadke, R. N. Karekar and
K. Sathianandan 146
Thermally Stimulated Current Studies in DopedPolystyrene t P. K. C. Pillai and Rashmi 150
Adiabatic Hall-Effect : B. S.'V. Gopalam 153
Temperature Dependence of the Extra-Ordinary Hall
Constant of Copper Ferrite Thin Films : S, R, Sawant,A. U, Patil, S.A, Patil, A. Y. Knot and R. N. Patil 157
Electrical Transitions in CuSO,. 5H O Single Crystals ;
D.A. Deshpande, P.N. Nandi and VTG. Kher 159
Space-Charge Limited Currents in Ferric Oxide : D. K. Jain
and J, C. Garg 161
Electrocaloric Effect in Ferroelectric KNbO, SingleCrystal: A. G. Katpatal and K. G. Deshmukh 162
Electrical Properties of Ferroelectric-Glass Compositions :
A. G. Katpatal and L. J'. Raibagkar 164
Green's Function Theory of Ferroelectric Phase Transitions
in Hydrogen-Bonded System : S. Ganguli and B. K. Chaudhuri 165
On the Ideality Factor of a Schottky Contact :
A.N. Daw, A.K. Datta and S. B. Roy 168
Temperature Dependent Oxide Charge in MOS Structures
with. ULtrathin Oxide : Vikram Kumar and Walter E. Dahlke 171
Barrier Lowering in Metal -N+(Thln)-N Diode in InP :
G. S. Visweswaran, R. Sharan and C. N. Krishnan 174
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£ass
A Study of Interface States in MOS Structure by Field
Effect, C-V andl-V Characteristics Measurements :
J, Majhi and M, S. Jagadeesh 177
Energetic Ion Backscattering and I-V Characteristics
of Schottky Barrier Contacts on InSb : A. Agrawal, 180
A. K„ Majumdar and R. Sharan
Photocapacitance Studies In Metal Oxide Semiconductor
Structures s M„ Mohan Chandra and G. Suryaa 183
Behavirol Characteristics of Glassy As-Ge-Te and Se-
Ge-Te Alloy-Systems : A, Kumar, O. S. Panwar, .D. R. Goyal,K.N. Lakshminarayan and K. K. Srivastava .187
Photo-Voltaic Spectrum of Polycrystaliine Silicon
Schottky Barrier Diode : P. Caleb Dhanasekaran
and B. S. V„ Gopalam 190
Effect of Thermal Annealing in Hydrogen Atmosphereon the Interface States of Gallium Arsenide and,"ttsNative Oxide :fi,M, Arora and A. M, Narsale 193
A Study of Photo Dielectric Effect in Tin Doped Gallium
Arsenide at High Frequencies : V. K. Farkya and
N. L. Porwa) 196
Pseudopotential Theory and the Impurity States in Ge :
E„ Palaniyandi and S. Balasubramanian,
197
Ton Implantation in Amorphous Germanium and Silicon :
P. Sekhar, M. C. Joshi, S. Guha and K. L. Narasimhan 1.98
Studies of Silicon Implanted with High Doses of NitrogenIons : A. D. Yadav and M. C. Joshi 200
Electron Irradiation in Amorphous Silicon s R. S. Deshmukh,
S. Guha and K. L. Narasimhan 203
Electron-Transport Through Neutron-Irradiated
In-CdS-In Structure : P,C. Srivastaya 206
Effect of Electrodes on Thin Films of CdS : A„ K. Tewari,
M. Datta and D. L. Bhattacharya 209
Electrical Conductivity, Thermoelectric Power, Optical
Absorption ^nd Structure of Thin Ge and GaSb Films :
B. S. Naidu,1 S. Mohan and P. Jayarama Reddy 212
Electrical Conductivity and Optical Absorption Studies in
InAs and InTe Thin Films : A. K. Sharma, D. V. K. Sastryand P. Jayarama Reddy 215
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Effect of Anisotropic Energy Surfaces and the SpatialDispersion of Dielectric on the Hubbard Model :
P. L. Geetha and S. Balasubramanian 218
Semiempirical CNDO Methods and the Binding Energy of
Group (III-V) and (II-VI) Compounds : K. S. Kulkami,J. S, Murthy and C. R. Sarma 221
Pressure Gradients of Energy Gaps of DegenerateSemiconductors • D. K. Roy and R. Y. Thakur 225
Behaviour of Mixed P- and N-Semiconducting Oxides :
R. K. Ponde, H. V. Keer and A. B. Biswas 229
Positron Life-Time Measurements in Gallium Arsenide
Single Crystals : K. P. Gopinathan, C. S. Sundar,V. Swaminathan and B. Viswanathan 232
Surface Structures of Semiconductors ': John Ridgway 236
Field Enhancement of Photoemission in an Alkali
Antimonide Photocathode : C. Ghosh and B. P. Varma 240
III. DYNAMICAL AND THERMAL PROPERTIES OF
SOLIDS AND LIQUIDS
Rotational Dynamics of Ammonium Ions in Octahedral
Surroundings : B. A. Dasannacharya, P. S. Goyal,S. K. Sinha and C. L. Thaper 243
Rotational Form Factor of NH4I : B. A. Dasannacharya
and-P. S. Goyal 247
Coexisting Phases in NH^I : P. S. Goyal and
B. A. Dasannacharya 250
Ultrasonic Attenuation and Velocity in Transformation
Products of Steel : G. Chengalrayan and
V. Padma Nabha Sarma 253
Lattice Dynamics of oC -Potassium Nitrate :
S. L. Chaplot, K. R, Rao, A.H. Venkatesh and
P. R, Vijayaraghavan 257
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Page
Infrared Study of Optical Phonons in
CsMnCl,. 2H O Crystal j Bhagwan Siagh, Y. S. Jain
and B.N. KnWa 262
Neutron Inelastic Scattering from Glycine and
Dl- 0^ -Alanine : C. L. Thaper, S. K. Sinha and
B. A. Dasannacharya 266
An Irreversible Structural Phase Transformation in
Nickel Sulphate Hexahydrate s A, K. Upadhyaya and
H. D. Bist 269
Effects of the Nonlocality and Depletion Hole in the
Lattice Dynamics of d-Barid Metals ; J, Kumar and
J. C. Upadhyaya 270
Normal Modes of Oscillations of Lattices with
Arbitrary Boundary Conditions : R.N. Chaudhurl and
R. K. Kar 274
Phonon Dispersion in Rare Gas Solids Derived from a
New Many Body Potential : S. Lehri and M. P. Verma Z77
A Model Approach to a Consistant Calculation of
Lattice Dynamics of Alkali Metals s D, Sen,S. K. Sarkar and D. Roy 280
Three-Body Interaction and Lattice Dynamics of
Metals : S.K. Das, S. K. Sarkar and D. Roy 284
The Expression for Lundqvist Three-Body Interaction
in Shell Model s S.K. Sarkar and S. Sengupta 287
Coherent Potential Approximation for a Diatomic
Linear Chain having Mass and Force Constant Changes :
P. Nayak and S.N. Behera 290
Temperature Dependence of Specific Heat and OrdeB
Parameter of p-n Heptyloxy Benzylidene-p-Amino-benzoic Acid : C, Manohar, V. K. Kelkar and
J. V. Yakhmi 293
Lattice Thermal Conductivity of Lithium Fluoride at
Low Temperatures : V. Radhakrishnan and
P. C. Sharma, 296
-IX-
Temperature Variation of Thermal Expansion of
KF by X-ray Diffraction and Energy of Vacancy-
Pair Formation ; N. M. Pandya and N. P. Shah 299
Evaluation of the Third Order Elastic Constants and
the Pressure Derivatives of the Second Order Elastic
Constants of T1C1 and TIBr : V.K. Garg, D. S. Puri
and M, P. Verms 301
Third-Order Elastic Constants of Gold : B. P. Barua and
S. K. Sinha 304
Lattice Theory of the Elastic Dielectric and Its
Application to Centro Symmetric Cubic Structuased
Solids : S. C. Goyal, O. P. Sharma, Vinod Kumar
and Jai Shanker 305
Temperature Dependence of Absorption Peak in Ionic
Crystals: M. R. Monga, V.K. Jindal and K. N. Pathak 306
Mean Square Displacement of an Atom in an Anharmonic
Crystal : V.K. Jindal, M. R. Monga and K. N. Pathak :("
Lattice Relaxations near a Vacancy in Copper :
S.K. Sen and M. B. Dutt ,ra
A Modified Force Constant Approach : S.K. Sarkar
and S. Sengupta 311
Space Group Change Accompanying Order - Disorder
Transition in (NH4), CuCl4> 2^0 : M. L. Bansal,
V. C. Sahni and A. P. Roy 312
Polar Mode Softening and Elastic Anomaly Temperatures
of Partially Deuterated KDP : G. K. Roy and
B.K. Chakrabarti3I6
Far-Infrared Transmission in Pb-Ge-S Amorphous
Semiconductors ; K. L. Bhatia and S. C. Katyal 320
On Woodcock Potential : K.P. Thakur and B.N. Jha 323
Pressure Dependence of the Critical Coexistence Curve
in Three Binary Liquid Mixture : A. Sivaraman,
A.K. Bandyopadyay, V. C. Padaki and E. S. R. Gopal 327
-X-
Detection of the Gravity Effect cm Critical Binary
Liquid Systems : Anil Kumar, M. K, Tiwari,S„ Jyothi and E. S. R. Gopal 330
Frequency Dependence of Critical Resistivity in BinaryLiquids ; Anil Kumar and E. S. R, Gopal 333
A New Statistical Mechanics s G. Suryan 336
Thermal Variation of Specific Heat of Chromium
Potassium Akmi in the Temperature Range 77 to 300K :
S.S. Mitra, &v"k. Ghorai and S. K. Dutta Roy 340
Temperature Dependence of the Density, Volume'ExpansionCoefficient and Tilt Angle of HxBPA for 250 K«CT^.340K :
K. Usha Deniz, A, I. Mehta, U. R. K. Rao,P. S. Farvathanaihaa and A. S, Paranjpe 344
Electron-Phonon Interaction in Doubly Doped Germanium
at Low Temperatures : Surendra Sindh and G. S, Verma 347
Thermal Expansioa of CoSi F^6H20 near its Phase
Transition Temperature : A. N. Das, N. Chatterjee,B. Ghosh and S. Nath 348
Scattering of Long Wave Phonons by Dislocations in
Plastically Deformed Germanium : S. Singh and K, C, Sood 349
Semiconductor-to-Metal Transition in Pure and V-DopadTi Oj : A, M. Shaikh, M. A. Vis-wamitra and C. N. R. Rao 352
Quantum Mechanical Formulation of Phonon Attenuation
in N-Type Semiconductors -with ZB Structure :
Mahiradhwaj Singh 356
Electron-Phonon Interaction in N~Type HI-V Semiconductor :
Mahiradhwaj Singh 359
Phases and Phase Transitions in the Compound p-n-
Alkoxybenzylidene-p-Aminobenzoic Acids :
K. Usha Deniz, A. S. Paranjpe, P. S. Parvathanathan,
E. B, Mirza, A.I. Mehta and K. S. Patel 362
~xi-
Refractive Indices and Orientational Order of Nematic
N-(4-Hexyloxybenzylidene)-p-Toluldine :
R. Somashekar and D. Krishnamurti 366
Electron Microscope Observation of Damage in Heavy
Ion Irradiated Silicon : L. E. Thailamanl and M. C. Joshi 369
Blistering by Helium Ion Bombardment s D.K. Sood,
M. Sundararaman and R. Krishnan 373
Empirical Rules for Substitutionality in Metastable
Surface Alloys Produced by Ion Implantation : D.K. Sood 376
Structure Investigation of Different Varieties of Indian
Silk by X-Ray Diffraction : N. V. Bhat and G. S. Nadiger 380
Infrared and X-Ray Diffraction Studies of Preswollen
Polymers : Nylon 6 : L. P. Singh and N. K. Chaudhuri 384
Small-Angle X-ray Investigation of Macromolecular
Deformation of Cellulose-I in Sisal Fiber : A. Patel 387
Collective Motions in Liquid Aluminium : G. S. Dubey,
D. K. Chaturvedi and K. N. Pathak 390
Backflow Effect in Classical Systems, IIOne-Component
Plasma : G. S. Dubey, P. K. Kahol and D. K. Chaturvedi 393
Backflow Effect in Classical Systems I. Liquid Rubidium :
P.K. Kahol, D.K. Chaturvedi andK. N. Pathak 396
Rotational Correlation in Cyclohexane by Raman Scattering :
M. L. Bansal and A. P. Roy 399
Radial Distribution Function of Pure Borate Glass :
B. Jayaswal and S. C. Sen 403
Orthoboric Acid : An Unsisual Ferroelastic : V. K. Wadhawan 404
Surface Segregation in Allays t Vijay Kumar, Deepak Kumar
and S.K. Joshi408
Localisation of Electrons in Disordered Systems :
A. Mookerjee and V. Choudhry 411
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Pagg
tY- MAGNETIC PROPERTIES OF SOLIDS
Coercive Force and Perpendicular Anisotropy of
Electro-Deposited Nickel Films : V. Jayaraman and
S.K. Dutta Roy 415
Susceptibility Critical Point Exponents for Some Mixed
Garnets: C. Srinivasan, Om Prakash and R. Aiyer 418
Effect of External Electric Field on Anomalous
Mossbauer Llneshapes ; R, Nagarajan and J.K. Srivastava 421
Low Temperature Susceptibilities of BIS (Dithlocarbamates)Iron Chloride : S. N. Bhatia and R. L. Carlin 424
Super-Exchange Interaction In Spinel Ferrimagnetics :
C. M. Srivastava, N. G. Nanadikar and G. Srinivasan 427
Magnetic Properties of Rare-Earth Ions in a Tetragonal
Crystalline Field of Zircon Structure Systems : Vlnod Kumar
and K. Chandra 430
Effect of An Electric Field on the De Haas-Van AlphenOscillations : Sudheer M. Phatak and Abbas A. Rangwala 433
Magnetic Properties of Ni,-Fe-Cr Alloys : A. Sinha and
A. K. Majumdar 436
Orbital Magnetic Susceptibility of Divalent HCP Metals :
S. P. Mohanty and P. K. Misra 437
Spin Susceptibility of Interacting Electrons in Metals :
S.K. Misra and P.K. Misra 438
Isotropic Ferromagnets with Biquadratic Interactions :
G. Chaddha 439
An Anisotropic Heisenberg Antiferromagnet Using theSecond-Order Green's Function Theory : R. Brahmachariand S. B. Bhattacharya 441
A Uni-Axial Heisenberg Ferromagnet : R. Brahmachariand K. G. Chakraborty 444
Itinerant Actiferromagnetism in Hubbard Model ;
K. Eapen and D. K. Ghosh 448
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Pagl-
Spin Correlation Functions in Magnetic Polymers :
Mustansir 'Barma 452
Solution of the Three Magnon Bound State Equation :
C.K. Majumdar and Indrani Bose 456
Theory of Magnetic Susceptibility of Tetrahedral
Semiconductors : T. Sahu and P. K. Misra 459
Quantum Effects on Coupled Transitions :
B.K. Chakrabarti 463
Magnetoresistance in Spin Glasses : A. K. Nigam and
A.K, Majumdar 467
Magnetic Contribution to the Electrical Conductivity in
Spin Glasses : Abhijit Mookerjee 470
Two Approaches to Spin-Glass Phase Transitions :
S.G. Satyanarayana,: N. Devaraj and N. Kumar 473
Excitations in Spin Glasses : Renu Bhargava and D.Kumar 476
Thermodynamics of a Simple Site Quenched MagneticMixture : N. K. Jaggi and K. R. P. M. Rao 480
Cobalt-Gallium Alloys : A Cluster Spin-Glass System? :
R. Vijayaraghavan, A. K. Grover, L. C. Gupta, K, Asayama,M. Matsumura, M. Nakano and K. Ueno . 483
Antiferromagnetism in Mixed Heusler Alloy (Cu, Pd),Mn Al : S. K. Paranjpe, Wathik N. A. Raazak and
R. J. Begum 486
Moment Distributions in Nickel-Ruthenium Alloys :
R. Chakravarthy, L. Madhav Rao, Z. Jirak and
N. S. Satya Murthy 489
Magnetic Properties of the System Znj^COgCr^Se^ :
S. G. Gokarn, H. V. Kiran, A. L. Shashimohan,
D.K. Chakrabarty andA B. Biswas 492
Study of Phase Transition in Ferrous Fluoborate
Hexahydrate at 274 K : B. K. Chaudhuri and K. Das 496
-XIV'
• Studies on Paramagnetic Defects and Weiss Constant
in CaSO s By end CaSO : Bi Phosphors : S. H. Pawar,M, R. Mulla and S. G. Saftais
Hyperfine Field Studies in Magnetically Ordered
Samarium Alloys ; R. Vijayaraghavan
Transferred Hyperfine Effects in the 3iP NMR of Rare •
Earth Phosphates : M. Bose, M. Bhattacharya and
S. Ganguli
3• Co NMR Studies of the Spin-State Equilibria in Rare
Earth Cobaltates ; M, Bose, A. Ghoshray, A. Basu,S. Kollall and C. N. R. Rao
NMR in Ferromagnetic Cobalt Heusier Alloys s
V. Nagarajan
Hyperfine Field Studies in Gold Based Heusier Alloys ;
A. K. Graver, LVDang Khoi and P. Veillet
Mossbauer Study of Epidotes and Pyroxyenes of Indian
Origin : R. P. Tripathi, Usha Chandra, A, Krishnamurthy
am' .-', Lokanathan
A Mossbauer Spectroscopy Study of Natural Alteration of
Tlmenites : N. K. Jaggi, K. R. P M. Rao and
N. P, Subramanyam
Calculation of Second Order Doppler Shift for a Lattice
Containing Point Defect : S. K. Roy, K, Momon Singh and
D. L. Bhattacharya
Lithium NMR in Single Crystal of Lithium CopperChloride
, ZH-jO s V. Nagarajan and N. C. Vissia
Zero-Field NMR Studies in Ferrlmagnetic'Mn2Sb :
K. V. S. Rama Rao, S. L. Pinjare and C, Ramasastry
. '2+Ground State Wave Function and &* g of Cu loa :
B. N. Misra, Faujdar and Ram Kripal
NMR Determination of Hydrogen Atom Positions in
Crystalline Hydrates : V. Nagarajan and T. F. Sunderraj
Mossbauer Effect Study of 83Kr in Rubidium Halides :
D. C. Gupta, N. D, Sharma and Jahan Singh
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Magnetic Susceptibility of ZnMn.O -MgAl O
CdMn204-MgAl204 Systems : M^G. Bodaff,
H. V. Keer and A. B. Biswas 536
Magnetic Behaviour of Transition Ion Complexes with
Different Llgands : B. N. Misra and Ram Kripal 539
Effect of Spontaneous Polarization on D-Tensor of
Mn - Doped in Ferroelectric NaN02 : Akhilesh Kumar
Jain and G. C. Upreti542
Temperature and Angular Variation of Line Widths and
Spin Hamiltonian Parameters of EPR Spectra of Mn
in Sodium Nitrite : Akhilesh Kumar Jain and G. C. Upreti 546
ESR Study of Cr Centre in the Ferroelectric Ammonium
Sulphate.: C. V. Manjunath and R. Srinivasan 549
Low Temperature Phase Transitions in Lanthanide Double
Sulphates : V. M. Malhotra and H. D. Bist552
Observation and Study of Electron Paramagnetic Resonance
of Vanadyl Ions Doped in Some Paramagnetic Tuttcm Salts :
R. S. Saraswat and G. C. Upreti 555
2+ESR Study of Mn - Doped Dicalcium Barium Propionate ;
V. Dhar, N. C. Mishra and R. Srinivasan 558
Optical and E. S. R. Studies of X-Irradiated Potassium
Zinc Sulphate Hexa Hydrate Doped with Nickel: S. Madhu
and B. S. V. S. R. Acharyulu
Electron Spin Resonance Studies of 31 Electron Oxides :
N. Hariharan 563
561
ESR Study of rj -Irradiated Cd(BrO ),. 2H20 : D. L. Sastry
and K. V. S. Rama Rao 566
Temperature Dependent EPR of Mn2+ in TMCC and T MCC :
K. K. Surendran, K. V. Lingam, M.J. Rao and
B.N. Bhattacharya567
Jahn Teller Effect of Cu2+ Ion: An EPR Study :
K. K. Surendran, K. V. Lingam, M. J. Rao and
B.N. Bhattacharya 570
Jahn-Teller Effect in Copper Doped Zinc Tris
(Ethylenediamine) Chloride : S. G. Sastry, M. J. Rao,
K. V. Lingam and B. N. Bhattacharya 573
-xvi-
E. S. R. Study of Cu++ Doped CdIm3S04H20 :
R.K. Sharma, K, V. Lingam, M.J. Rao and
B.N. Bhattacharya 576
ESR Study of NO Radical in Rb2 Th (N03)6 :
T. K. Gundu Rao, K. V. Lingam and B. N. Bhattacharya 579
Nof+ Radical in K2(U02) (N©3)4 : An ESR Study :
T.K. Gundu Rao, K. V. Lingam and B.N. Bhattacharya 582
Rotary Modes In the Molecule 2-Amino~5-ChloropyridineUsing NQR Data : S. P. Basavaraju and N. Devaraj 585
Zeeman Effect of Chlorine NQR and Intramolecular
Hydrogen Bonding in 2, 5-Dichlorophenol :
R. Chandramani, N. Devaraj, K. R. Sridharan and
J, Ramakrishna 589
Nuclear Quadrupote Resonance Investigations in Phaspha-zenes n : Study of Ethylene Diamino Tetrachloro Trimeric
Cyciophosphazene : K. R. Sridharan, J. Ramakrishna and
S. S. Krishmamurthy 590
V. OPTICAL PROPERTIES OF SOLIDS
Pure and Rare Earth Doped ZnO Electroluminors :
S. Bhushan, A.N. Pandey and Balakrishna Rao Kaza 591
2+Optical and Transport Properties of RoI:Sn Crystals :
S. B. S. Sastry, K. Balasubramanyam, S. Madhu and
B. S. V. S. R. Acharyulu 596
Ultra-Violet Absorption Produced by Phosphorus Ion
Implantation of Fused Silica : J. M. Luthra, P. K. Bhattacharyaand N. Sarma 599
Nature of Defects in NaF:LiF : S. V. Moharil and
B. T. Deshmukh 603
Fluorescence and Excitation Spectra of NH4Br+TlBr Mixed
Phosphor : V, B. Sharan, D. N. S. Srivastwa and S. C. Sen 606
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Pape
AC Electroluminescence in ZnS Thin Films :
John Sebastian and R. N. Karekar 610
Pure Crystal Phosphorescence of 1-NaphthoI audits
Mechanism : N. S. Gangakhedkar and N. K. Chaudhuri 611
Anomalous Effect of Low Doping on Vibrational Exciton
Splitting in Benzoic Acid Single Crystals : A. V,. Namjoshi and
N.K. Chaudhuri 615
Triplet Exciton Traps in Pure Acetanilide Crystals :
A. V. Namjoshi and N. K. Chaudhuri 619
Photoconduction in Benzanthrone Thin Film : M. R. Padhye,
T. S. Varadarajan and L. N. Chaturvedi 622
Two-Phonon Resonant Raman Scattering in Silicon :
K. P. Jain and C. S. Jayanthi 626
The Valence Band Anomaly In GaSe : Rita Gupta 629
Photoconductivity of Alkali Doped CdS Thin Films :
S. H. Pawar, A. G. Shikalgar and B. B. Bargale 633
Infrared Laser by Proton Tunnelling r Pradip N. Ghosh and
D. L. Bhattacharya 637
Electronic Dielectric Constant Versus Interatomic
Distance ln'AN B8 Compounds : K. C. Rustagi 640
Laser Excited Raman Spectrum and Vibrational Dynamics
of MnCl ,
2H O : B. K. Srivastava, D. P. Khandelwal and
H.D. Bi2st L644
A Tunable Coherent Source at 16 nm Using Nonlinear
Optical Mixing in Solids : P. K. Gupta and K. C. Rustagi 648
Resonant Modes due to H -D Pair Impurity in KC1 r
R.K. Gupta, A.K. Singh and P. Mathur 651
Resonant Modes due to H Ions in Alkali Halides
Containing Additive Cation Impurity : R. K. Gupta and
A.K. Singh652
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EMS.
Anisotropy of Folarlsabilitles and Internal Field in
Crystals s D. Revannasiddaiah and D. Krishmamurti 653
VI. INSTRUMENTATION FOR SOLID STATE STUDIES
Design and Construction of a Solid State Pulsed NMR
Spectrometer ; R. K. Shenoy and J. Ramakrishna 655
A High Speed Digital Signal Averager for Pulsed NMR:
R, Srinivaaan, J. Ramakrishna and S. R, Rajagopalan 659
Minimisation oi Phase Distortion in Pulsed NMR
Studies s R.N. Roy 662
Deposition and TEM Studies of Aged YF3 and TbF
Thin Films : U. Kumar, P.N. Singh, S.K. Agarwal;A. K. Nigam and S. P. Singh 665
Thickness Measurement of Thin Films by XRF Analysis
and its Comparison with Quartz Crystal Oscillator
Technique : D.K. Kauahik, S. Priyokumar Singh,S.K. Chattopadhyaya and N. Nath 667
An I. C. Pulse Interference Technique for Measurement
of Ultrasonic Velocities in Solids : V. Kesava Raju and
P. Jayarama Reddy 669
A He-Cd Laser for Raman Studies : M, L, Bansal 672
A 3 - Sample, 6 - Lead Brldgman Anvil Assembly for
Resistivity Measurements to 100 KBAR : V. Sankara
astry, Rita Kapoor and K. Govinda Rajan 675
A 30KeV Ion Implantation System with a Velocity Filter
for Mass Separation s G. S. Vlrdi, M. D. Agarwal,
S. K. Chattopadhyaya, V. K. Mathur and N. Nath 679
Temperature Controller for Magnetic SusceptibilityMeasurement : A. Khan and C.K. Majumdar 680
Electrical Conductivity of a Vacuum Evaporated Germanium
Films Using a New Type of Sample Holder : K. K. Bhale and
S. S. Shah 682
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Simple Resistance Technique to Measure the
Activation Energy and Mobility of Electromigration in
Amorphous Semiconductors : O. S. Panwar, D. R. Goyal,A. Kumar, K. K. Srivastava and K. N, Lakshminarayan 683
Design of an Indigenous Light Scattering Dust Particle
Counter : Chatar Singh, S.K. Chattopadhyaya,V. K. Mathur and N. Nath 686
AUTHOR INDEX 692