2000 - 1999 - 1998 - 1997 - 1996 - 1995 - 1994 - 1993 -1992 - 1991

2000

•  D. D. Sarma, Priya Mahadevan, T.Saha-Dasgupta, Sugata Ray and Ashwani Kumar, Electronic structure of Sr{2}FeMoO{6}, Phys. Rev. Lett. 85, 2549 (2000).

• S.R. Krishnakumar, N. Shanthi, Priya Mahadevan and D. D. Sarma, Electronic Structure of NiS{1-x}Se{x}, Phys. Rev. B 61, 16370 (2000).

•  K. Maiti and D. D. Sarma, Spectroscopic investigations of the electronic structure and metal-insulator transitions in a Mott-Hubbard system, La{1-x}Ca{x}VO{3}, Phys. Rev. B 61, 2525 (2000.

•  Priya Mahadevan and D. D. Sarma, Calculation of X-ray absorption spectra from strongly correlated systems, Phys. Rev. B 61, 7402 (2000).

•  Z. Hu, M.S. Golden, J. Fink, G. Kaindl, S.A. Warda, D. Reinen, P. Mahadevan and D. D. Sarma, The hole distribution between the Ni 3d and O 2p orbitals in Nd{2-x}Sr{x}NiO{4}, Phys. Rev. B 61, 3739 (2000).

•  C. Castellano, F. Cordero, R. Cantelli, C. Meneghini, S. Mobilio, D. D. Sarma and M. Ferretti, Dynamics and local structure of colossal magnetoresistance manganites, Int. J. Mod. Phys. B 14, 2725 (2000).

•  D. D. Sarma, E.V.Sampathkumaran, Sugata Ray, R. Nagarajan, Subham Majumdar, Ashwani Kumar, G. Nalini and T.N. Guru Row, Magnetoresistance in ordered and disordered double perovskite oxide, Sr{2}FeMoO{6}, Solid State Communications 114, 465 (2000). 

•  N. Shanthi, Priya Mahadevan and D. D. Sarma, Electronic band structure of chromium thiospinels: CdCr{2}S{4} and CdCr{2}Se{4}, J. Solid State Chem. 155, 198 (2000).

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1999

• Priya Mahadevan and D. D. Sarma, Metal-insulator transition in a degenerate Hubbard model, Phys. Rev. B 59, 1739 (1999).  

• K. Maiti, Priya Mahadevan, D. D. Sarma, Evolution of electronic structure with dimensionality in divalent nickelates, Phys. Rev. B 59, 12457 (1999).

•  S. Chaudhary, V. Sunil Kumar, S. B. Roy, P. Chaddah, S. R. Krishnakumar, V. G. Sathe, A. Kumar and D. D. Sarma, Magnetocaloric effect in La{1-x}Sr{x}CoO{3} (0.05 < x < 0.4), J. Magn. Magn. Mater. 202, 47 (1999).

•  N. Shanthi and D. D. Sarma, Electronic Structure of Vacancy Ordered Spinels, GaMo{4}S{8} and GaV{4}S{8} from ab initio Calculations, J. Solid State Chem. 148, 143 (1999).

•  Meneghini, C. Castellano, A. Kumar, S. Ray, D. D. Sarma and S. Mobilio, Coupling of Small Lattice Polarons to Magnetic Field in Magnetoresistive Manganites , Phys. Stat. Solidi 215, 647 (1999).

•  D. D. Sarma, Dinesh Topwal, and A. Chainani, Electron spectroscopic data of La{1-x}Sr{x}MnO{3} and La{1-x}Sr{x}CoO{3}, Surface Science Spectra 6, 274 (1999).

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1998

• D. D. Sarma, S. R. Krishnakumar, Nirmala Chandrasekharan E. Weschke, C. Sch�ssler Langeheine, L. Kilian and G. Kaindl, Electronic structure of NiS{1-x}Se{x} across the phase transition, Phys. Rev. Lett. 80, 1284 (1998).

•  K. Maiti, Priya Mahadevan and D. D. Sarma, Evolution of the spectral function in a doped Mott insulator: Surface vs. bulk contributions, Phys. Rev. Lett. 80, 2885 (1998).

•  D. D. Sarma, A. Chainani, S. R. Krishnakumar, E. Vescovo, C. Carbone, W. Eberhardt, O. Rader, Ch. Jung, Ch. Hellwig, W. Gudat, H. Srikanth and A. K. Raychaudhuri, Disorder effects in electronic structure of substituted transition metal compounds, Phys. Rev. Lett. 80, 4004 (1998).

•  D. D. Sarma and Priya Mahadevan, Auger transitions from orbitally degenerate systems: Effects of screening and multielectron excitations, Phys. Rev. Lett. 81, 1658 (1998).

•  K. Maiti and D. D. Sarma, Electronic structure of Y{2-x}Ca{x}BaNiO{5}, Phys. Rev. B 58, 9746 (1998).

•  K. Maiti, D. D. Sarma, T. Mizokawa and A. Fujimori, Electronic structure of one-dimensional cuprates, Phys. Rev. B 57, 1572 (1998).

•  N. Shanthi and D. D. Sarma, Electronic structure of electron doped SrTiO{3}: SrTiO{3}� and Sr{1-x}La{x}TiO{3}, Phys. Rev. B 57, 2153 (1998).

• D. D. Sarma, M. Pedio, M. Capozi, A. Girycki, Nirmala Chandrasekharan, N. Shanthi, S.R. Krishnakumar, C. Ottaviani, C. Quaresima and P. Perfetti, Unoccupied electronic states in NiS{2-x}Se{x} across the metal-insulator transition, Phys. Rev. B 57, 6984 (1998).

•  K. Mamiya, T. Mizokawa, A.Fujimori, T. Miyadai, N. Chandrasekharan, S. R. Krishnakumar, D. D. Sarma, H. Takahashi, N. Mori, and S. Suga, Photoemission study of the metal-insulator transition in NiS{2-x}Se{x}, Phys. Rev. B 58, 9611 (1998).

•  D. D. Sarma, S. R. Barman, C. Carbone, R. Cimino, W. Eberhardt and W. Gudat, Comparative study of the L23-M45M45 Auger decay in CuO and Cu using synchrotron radiation, J. Electron Spectrosc. Relat. Phenom. 93, 181 (1998).

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1997

• Priya Mahadevan, K. Sheshadri, D. D. Sarma, H. R. Krishnamurthy and Rahul Pandit, Electronic and magnetic transitions in a multiband model for La{2}NiO{4}, Phys. Rev B 55, 9203 (1997). K. Maiti, D. D. Sarma, T. Mizokawa and A. Fujimori, Electronic structure of one-dimensional cuprate Sr{2}CuO{3}, Europhys. Lett. 37, 359 (1997).

•  O. Rader, E. Vescovo, M. Wuttig, D. D. Sarma, S. Bl�gel, F. J. Himpsel, A. Kimura, K. S. An, T. Mizokawa, A. Fujimori and C. Carbone, Correlation satellite driven by reduced dimensionality, Europhys. Lett. 39, 429 (1997).

• T. Saitoh, A. Sekiyama, K. Kobayashi, T. Mizokawa, A. Fujimori, D. D. Sarma, Y. Takeda and M. Takano, Temperature dependent valence band photoemission spectra of La{1-x}Sr{x}MnO{3},  Phys. Rev. B 56, 8836 (1997).

•  Priya Mahadevan, N. Shanthi and D. D. Sarma, Electronic structure of LaCrO{3}, LaMnO{3} and LaFeO{3} from ab-initio spin-polarised calculations, J. Phys.: Condens. Matter 9, 3129 (1997).

•  Z. Y. Wu, M. Benfatto, M. Pedio, R. Cimino, S. Mobilio, S. R. Barman, K. Maiti and D. D. Sarma, Theoretical analysis of x-ray absorption near edge fine structure at the O and metal K-edges of LaFeO{3} and LaCoO{3}, Phys. Rev. B 56, 2228 (1997).

• C. Meneghini, R. Cimino, S. Pascarelli, S. Mobilio, C. Raghu and D. D. Sarma, Temperature dependence of non-Debye disorder in doped manganites, Phys. Rev. B 56, 3520 (1997).

•  K. Maiti, N. Y. Vasanthacharya and D. D. Sarma, Transport and magnetic properties of La{1-x}Ca{x}VO{3}, J. Phys. Condens. Matter 9, 7507 (1997).

• H. Kajueter, G. Kotliar, D. D. Sarma and S. R. Barman, Evolution of spectral functions in doped transition metal oxides, Int. J. Mod. Phys. B 11, 3849 (1997).

• S. Caprara, M. Avignon, D. D. Sarma, Spin and charge density waves in the extended Hubbard model: A slave boson approach, Int. J. Mod. Phys. B 11, 2057 (1997).

•  K. Mamiya, T. Mizokawa, A. Fujimori, H. Takahashi, N. Mori, T. Miyadai, S. Suga, Nirmala Chandrasekharan, S. R. Krishnakumar and D. D. Sarma, Photoemission study of pyrite-type transition-metal chalcogenides MS{2-x}Se{x}, Physica B 237-238, 390 (1997).

•  D. D. Sarma and Priya Mahadevan, Ab-initio approach to electronic excitation spectra in perovskite LaMO{3} oxides, in Frontiers in Materials Modelling and Design, Eds. Vijay Kumar, Surajit Sengupta and Baldev Raj (Springer Verlag, Heidelberg), 1997.

• D. D. Sarma and Priya Mahadevan, Electronic and magnetic transitions in undoped transition metal compounds, in Condensed Mater Theories, Vol. 12, Eds. J.W. Clark and P.V. Panat, Nova Science Publishers, New York, 1997.

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1996

• D. D. Sarma, S. R. Barman, H. Kajueter and G. Kotliar, Spectral functions in doped transition metal oxides, Europhys. Lett. 36, 307 (1996).

• D. D. Sarma, N. Shanthi, S.R. Krishnakumar, T. Saitoh, T. Mizokawa, A. Sekiyama, K. Kobayashi, A. Fujimori, E. Weschke, R. Meier, G. Kaindl, Y. Takeda and M. Takano, Temperature dependent spectral weight transfer and metal-insulator transition in hole-doped LaMnO{3}, Phys. Rev. B 53, 6873 (1996).

• K. Maiti and D. D. Sarma, Electronic structure of La{1-x}Sr{x}CrO{3}, Phys. Rev. B 54, 7816 (1996).

• D. D. Sarma, N. Shanthi and Priya Mahadevan, Electronic excitation spectra from ab-initio band structure results for LaMO{3}, Phys. Rev. B 54, 1622 (1996).

•  Priya Mahadevan, N. Shanthi and D. D. Sarma, Estimates of electronic interaction parameters for LaMO{3} compounds (M=Ti-Ni) from ab-initio approaches, Phys. Rev B 54, 11199 (1996); Erratum in Phys. Rev. B 55, 13322 (1997).

• D. D. Sarma, K. Maiti, E. Vescovo, C. Carbone, W. Eberhardt, O. Rader and W. Gudat, Investigation of hole-doped insulating La{1-x}Sr{x}CrO{3} by soft x-ray absorption spectroscopy, Phys. Rev. B 53, 13369 (1996).

•  S. R. Barman, N. Shanthi, A. K. Shukla and D. D. Sarma, Order-disorder and electronic transitions in Ag2+S single crystals studied by photoemission spectroscopy, Phys. Rev. B 53, 3746 (1996).

•  T. Yokoya, A. Chainani, T. Takahashi, H. Katayama-Yoshida, M. Kasai, Y. Tokura, N. Shanthi and D. D. Sarma, Evidence for correlation effects in Sr{2}RuO{4} from resonant and x-ray photoemission spectroscopy, Phys. Rev. B 53, 8151 (1996).

• A. Chainani, D. D. Sarma, I. V. Das and E. V. Sampathkumaran, Low-temperature electrical conductivity of LaNi{1-x}Fe{x}O{3}, J. Phys. Condens. Matter 8, L631 (1996).

• A. E. Bocquet, T. Mizokawa, K. Morikawa, A. Fujimori, S. R. Barman K. Maiti, D. D. Sarma, Y. Tokura and M. Onoda, Electronic structure of early 3d transition metal oxides by analysis of the 2p core-level photoemission spectra,  Phys. Rev. B 53, 1161 (1996).

• D. D. Sarma, Estimate of mixed-valency in transition metal oxides from core-level photoemission spectroscopy, J. Phys. Soc. Jpn. 65, 1325 (1996).

• K. Okada, A. Kotani, K. Maiti and D. D. Sarma, Cu 2p core-level photoemission spectrum of Sr{2}CuO{3}, J. Phys. Soc. Jpn. 65, 1844 (1996).

•  D. D. Sarma, Disorder induced effects on electronic structure of transition metal oxides, J. Electron Spectrosc. Relat. Phenom. 78, 37 (1996).

• D. D. Sarma, S. R. Barman, H. Kajueter and G. Kotliar, Novel spectral evolution with electron doping in d⁰ transition metal oxides, Physica B 223-224, 496 (1996).

• C. Carbone, E. Vescovo, D. D. Sarma, W. Eberhardt and R. Klasges, Magnetic and finite size effects in Cu films on Co(100), Solid State Comm 100, 749 (1996).

• C. Carbone, E. Vescovo, R. Klasges, D. D. Sarma and W. Eberhardt, Magnetic quantum size effects in Cu films on Co(100), J. Magn. Mag. Mater. 156, 259 (1996).

•  S. Mahamuni, B. S. Bendre, T. Baruah, A. Kshirsagar, S. S. Joshi, A. G. Bedekar, S. F. Patil, P. Singh, K. Maiti, and D. D. Sarma, Studies on BaO particles in nanosize regime, NanoStructured Materials 7, 557 (1996).

• D. D. Sarma and S. R. Barman, Metal-insulator transition in 3d transition metal oxides in Electronic structure of correlated systems, Eds. S. Ramasesha and D. D. Sarma, Narosa New Delhi 1996, pp. 222.

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1995

• D. D. Sarma, N. Shanthi, S. R. Barman, N. Hamada, H. Sawada, and K. Terakura, Band theory for ground state properties and excitation spectra of perovskite LaMO{3} (M=Mn, Fe, Co, Ni), Phys. Rev. Lett. 75, 1126 (1995).

•  D. D. Sarma and S. R. Barman, Electronic structure of transition metal compounds, Solid State Science Vol. 119 `Spectroscopy of Mott Insulators and Correlated Metals', Eds. Y. Tokura and A. Fujimori, Springer Verlag 1995, pp. 126.

• R. Mahendiran, A. K. Raychaudhuri, A. Chainani and D. D. Sarma, Large magnetoresistance in La{1-x}Sr{x}MnO{3} and its dependence on magnetization, Appl. Phys. Lett. 66, 233 (1995).

• Shubha Gokhale, S. R. Barman and D. D. Sarma, Dielectric function and optical conductivity of TiO{x} (0.8 < x < 1.3) determined from electron energy loss spectroscopy, Phys. Rev. B 52, 14526 (1995).

• S. R. Barman and D. D. Sarma, Electronic structures of gallium and indium across the solid--liquid transition, Phys. Rev. B 51, 4007 (1995).

• R. Mahendiran, A. K. Raychaudhuri, A. Chainani and D. D. Sarma, Large magnetoresistance of La{1-x}Sr{x}CoO{3} at low temperatures, J. Phys. (Condensed Matter) 7, L561 (1995).

•  R. Mahendiran, A. K. Raychaudhuri, A. Chainani and D. D. Sarma, Low temperature linear magnetic field sensor based on magnetoresistance of the perovskite oxide La{1-x}Sr{x}CoO{3}, Rev. Sci. Instrum. 66, 3071 (1995).

• D. D. Sarma, Metal-Insulator transition in 3d transition metal perovskite oxides investigated by high-energy spectroscopies, The Metal-Nonmetal Transition Revisited, Eds. C. N. R. Rao and P. P. Edwards, Francis-Taylor London, 1995, pp. 143.

• D. D. Sarma, N. Shanthi, S. R. Barman, and P. Mahadevan, Electronic structure and metal--insulator transition in LnNiO{3} (Ln=La, Pr, Nd, Sm and Ho), in Perspectives in Solid State Chemistry, Ed. K.J. Rao, Narosa - New Delhi 1995, pp. 285.

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1994

• S. R. Barman, A. Chainani and D. D. Sarma, Covalency driven unusual metal-insulator transition in nickelates, Phys. Rev. B 49, 8475 (1994).

•  S. R. Barman and D. D. Sarma, Photoelectron spectroscopic investigation of the spin-state transition in LaCoO{3}, Phys. Rev. B 49, 13979 (1994).

• S. R. Barman and D. D. Sarma, Electronic structure of TiO{x} (0.8 < x < 1.3) with disordered and ordered vacancies, Phys. Rev. B 49, 16141 (1994).

• D. D. Sarma, O. Rader, T. Kachel, A. Chainani, M. Mathew, K. Holldack, W. Gudat, and W. Eberhardt, Contrasting behaviour of homovalent substituted and hole doped systems : O K-edge spectra from LaNi{1-x}M{x}O{3} (M=Mn, Fe and Co) and La{1-x}Sr{x}MnO{3}, Phys. Rev. B 49, 14238 (1994).

• D. D. Sarma, N. Shanthi and P. Mahadevan, Electronic structure and metal-insulator transition in LnNiO{3} (Ln=La, Pr, Nd, Sm and Ho) : Band structure results, J. Phys. Condens. Matter 6, 10467 (1994).

• D. D. Sarma and A. Chainani, Electronic structure of perovskite oxides, LaMO{3} (M=Ti-Ni) using high-energy spectroscopies, J. Solid State Chem. 111, 208 (1994).

• D. D. Sarma, N. Shanthi and Priya Mahadevan, Electronic structure of 3d transition metal perovskites, LaMO{3} from band structure calculations, Physica C 235-240, 2115 (1994).

• D. D. Sarma, A. K. Santra and C. N. R. Rao, Electronic structures of perovskite oxides of transition metals of the type LaMO{3} (M = Ti-Ni) as revealed by MSX investigations, J. Solid State Chem. 110, 393 (1994).

• Seva Nimkar, N. Shanthi, and D. D. Sarma, Origin of the insulating state in NaCuO{2}, Proc. Ind. Acad. Sci. - Chem. Sci. 106, 393 (1994).

• D. D. Sarma, S. Krummacher, W. Gudat, C. L. Lin, L. W. Zhou, J.E. Crow and D.D. Koelling, Resonant photoemission studies of the magnetic-nonmagnetic U(Sn,In)3 system, Physica B 199 &200, 622 (1994).

•  A. S. Arico, V. Antonucci, N. Giordano, A. K. Shukla, M. K. Ravikumar, A. Roy, S. R. Barman and D. D. Sarma, Methanol oxidation on carbon-supported Pt-Sn electrodes in sulphuric acid, J. Power Sources 50, 295 (1994).

•  A. K. Shukla, M. K. Ravikumar, A. Roy, S. R. Barman, D. D. Sarma, A. S. Arico, V. Antonucci, L. Pino and N. Giordano, Electrooxidation of Methanol in Sulphuric acid Electrolyte on Platinized-Carbon electrodes with varying functional-group characteristics, J. Electrochem. Soc. 141, 1517 (1994).

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1993

• Seva Nimkar, D. D. Sarma and H. R. Krishnamurthy, Electronic structure of NaCuO{2}, Phys. Rev. B (Rapid Commun.) 47, 10927 (1993); Erratum in Phys. Rev. B 48, 17650 (1993).

• A. Chainani, M. Mathew and D. D. Sarma, Electronic structure and semi-conductor-metal transition in La{1-x}Sr{x}MnO{3} : An electron spectroscopy study, Phys. Rev. B 47, 15397 (1993).

• A. Chainani, M. Mathew and D. D. Sarma, Electronic structure of La{1-x}Sr{x}FeO{3}, Phys. Rev. B 48, 14818 (1993).

• Seva Nimkar,D. D. Sarma, H. R. Krishnamurthy and S. Ramasesha, Mean-field results of the multiple band extended Hubbard model for the square-planar CuO{2} lattice, Phys. Rev. B 48, 7355 (1993).

• D. D. Sarma, C. Carbone, R. Cimino, P. Sen and W. Gudat, Analysis of the Gd 4d-XY Auger spectrum using synchrotron radiation, Phys. Rev. B 47, 9199 (1993).

• D. D. Sarma, C. Carbone, R. Cimino, P. sen, W. Gudat and W. Eberhardt, Analysis of Ce 3d-4d4d Auger spectrum using synchrotron radiation, Phys. Rev. B 47, 4853 (1993).

• D. D. Sarma, S. R. Barman, R. Cimino, C. Carbone, P. Sen, A. Roy, A. Chainani and W. Gudat, Importance of dynamical effects in determining the Auger spectral shape : L23-M45M45 spectra of Fe, Co and Cu, Phys. Rev. B 48, 6822 (1993).

• Chainani, M. Mathew, D. D. Sarma, I. Das and E. V. Sampathkumaran, Electrical resistivity anomalies in the perovskites, La{1-x}Sr{x}MnO{3}, Physica B 186-188, 995 (1993).

• A. K. Shukla, A. Hamnett, A. Roy, S. R. Barman, D. D. Sarma, V. Alderucci, L. Pino and N. Giordano, An x-ray photoelectron spectroscopic study on carbons with varying functional-group character, J. Electroanal. Chem. 352, 337 (1993).

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1992

• A. Chainani, M. Mathew and D. D. Sarma, Electron spectroscopy study of the semiconductor-metal transition in La{1-x}Sr{x}CoO{3}, Phys. Rev. B 46, 9976 (1992).

• D. D. Sarma, A. Chainani, R. Cimino, P. Sen, C. Carbone, M. Mathew and W. Gudat, Electronic structure of and the metal-insulator transition in La{1-x}Sr{x}CoO{3}: A soft x-ray absorption study, Europhys. Lett., 19, 513 (1992).

• S. R. Barman and D. D. Sarma, Investigation of the L3-M45M45 Auger spectra of Cu, Cu{2}O and CuO, J. Phys. : Cond. Matter, 4, 7607 (1992).

• C. N. R. Rao, A. K. Santra and D. D. Sarma, Comment on variation of Cu-O charge-transfer energies in YBa{2}Cu{3}O{7-x} thin films studied by photoemission spectroscopy, Phys. Rev. B 45, 10814 (1992).

• D. D. Sarma, S. R. Barman, Seva Nimkar and H. R. Krishnamurthy, Resolution of the negative U problem in the early transition metals : A reinterpretation of the LVV Auger spectra, Phys. Scr. T41, 184 (1992).

• D. D. Sarma, H. R. Krishnamurthy, Seva Nimkar, P. P. Mitra, S. Ramasesha and T. V. Ramakrishnan, Electronic structure of the high Tc cuprate superconductors and related compounds,

• Pramana - J. Phys. 38, L531 (1992). V. Vijayakrishnan, A. Chainani, D. D. Sarma and C. N. R. Rao, Metal-insulator transition in metal clusters : A high-energy spectroscopy study of Pd, Ni and Ag clusters, J. Phys. Chem. 96, 8679 (1992).

• D. D. Sarma, R. Cimino, C. Carbone, P. Sen, S. R. Barman and W. Gudat, Synchrotron study of the dynamical effects in the LVV Auger transitions in the first-row transition elements, Phys. Scr. T41, 187 (1992).

• C. N. R. Rao, K. J. Rao, S. Ramasesha, D. D. Sarma and S. Yashonath, Physical chemistry of solids, Ann. Rep. Prog. Chem. Sec.C : Phys. Chem., 179-234 (1992)

• D. D. Sarma, Electronic structure studies of high-Tc cuprates by photoelectron spectroscopy, in "Superconductivity (New insights and current trends in high-T{c} superconductors)'', Eds. S. Gregoli, B. Raveau and C.N.R. Rao, 1992, Commission of the European Communities, pp. 33.

• C. N. R. Rao and D. D. Sarma, Dependence of the superconductivity of the layered cuprates on the Cu-O charge-transfer energy and related chemical bonding parameters, in ``Studies in High-Temperature Superconductors'', Vol. 10, Nova Sciene Publishers, New York.

   

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1991

• D. D. Sarma, Investigation of the electronic structure of the high temperature cuprate superconductors using high-energy spectroscopies, in ``Chemistry of high temperature superconductors'', Ed. C.N.R. Rao, (World Scientific, Singapore) pp. 348 (1991).

• D. D. Sarma, W. Speier and J.F. van Acker, Comment on X-ray-photoelectron diffraction from a free-electron-valence band : Evidence for hole-state localization, Phys. Rev. Lett. 66, 2834 (1991).

• D. D. Sarma, C. Carbone, P. Sen, R. Cimino, and W. Gudat, Reply to the commment on origin of Cu and Zn L2- and L3-M45M45 Auger satellites : Breakdown of the sudden approximation, Phys. Rev. Lett. 66, 967 (1991).

• D. D. Sarma, P. Sen, R. Cimino, C. Carbone, W. Gudat, E.V. Sampathkumaran and I. Das, Origin of nonmetallicity in PrBa{2}Cu{3}O{7} from a study of Gd{1-x}Pr{x}Ba{2}Cu{3}O{7} using soft x-ray absorption at the oxygen K-edge, Solid State Commun. 77, 377 (1991).

• D. D. Sarma, P. Sen, C. Carbone and W. Gudat, Spectroscopic evidence for the removal of mobile holes on Fe doping in YBa{2}Cu{3-x}Fe{x}O{7}, Solid State Commun. 77, 381 (1991).

• A. K. Santra, D. D. Sarma and C. N. R. Rao, Relation between the electronic structure and the superconductivity of cuprates as revealed by Cu(2p) photoemission and theoretical investigations, Phys. Rev. B 43, 5612 (1991).

• C. N. R. Rao, S. Ramasesha, D. D. Sarma and A. K. Santra, Dominant role of the Cu-O charge-transfer energy, electronic polarizability and associated factors in the superconductivity of the cuprates, Solid State Commun. 77, 709 (1991).

• C. N. R. Rao, V. Vijayakrishnan, D. D. Sarma and A. Chainani, Investigations of transition metal clusters deposited on solid substrates by photoelectron spectroscopy, bremsstrahlung isochromat spectroscopy and related techniques, Faraday Discuss. Chem. Soc. 92, 147 (1991)

• A. Chainani and D. D. Sarma, Calculated oxygen 1s core-level photoemission spectra from cuprate superconductors, Pramana - J. Phys. 37, 135 (1991).

• D. D. Sarma, Evaluation of electron-electron interaction energies from first principle calculations, Rev. Solid State Sci. 5 461 (1991) and in ``Quantum mechanical cluster calculations in solid state studies'', Eds. R.W. Grimes, C.R.A. Catlow and A.L. Shluger, (World Scientific, Singapore), pp. 401 (1992).

• D. D. Sarma, Effects of interfaces on properties of high-temperature superconducting cuprates, in ``Science of Ceramic Interfaces'', Ed. J. Nowotny, Elsevier Science Publisher, 1991, pp.371.