1990 - 1989 - 1988 - 1987- 1986

1990

• D. D. Sarma and S. G. Ovchinnikov,
  Analysis of the core level photoemission spectra of the superconducting cuprates : Evidence for a strongly mixed-valent state,
  Phys. Rev. (Rapid Commun.) B 42, 6817 (1990).


• D. D. Sarma and A. Chainani,
  Systematics in the O 1s core level photoemission spectra from metal oxides: Model calculations,
  Phys. Rev. B 41, 6688 (1990).


• C. N. R. Rao, G. Ranga Rao, M. K. Rajumon and D. D. Sarma,
  Role of the Cu-O charge-transfer energy in the superconductivity of cuprates: Evidence from Cu (2p) core-level spectroscopy and theory,
  Phys. Rev. B (Rapid Commun.) 42, 1026 (1990).


• D. D. Sarma,
  Electronic structure of transition metal compounds : Photoemission experiments and model Hamiltonian calculations,
  J. Solid State Chem., 88, 45 (1990).


• P. J. W. Weijs, M. T. Czyzyk, J. C. Fuggle, W. Speier, D. D. Sarma and K. H. J. Buschow,
  Electronic structure and bonding properties in TiSi{2},
  Z. Phys. B 78, 423 (1990).


• G. Ranga Rao and D. D. Sarma,
  Systematics in the O 1s core-level spectra in transition metal oxides, LaMO3 (M = V-Ni),
  Modern Physics Letters B 4, 277 (1990).


• P. J. W. Weijs, G. Wiech, W. Zahorowski, W. Speier, J. B. Goed Koop, M. Czyzyk, J. R. van Acker, E. Van Leuken,
  R. A. de Groot, G. van der Laan, D. D. Sarma, L. Kumar and J. C. Fuggle,
  X-ray emission and absorption studies of silicides in relation to their electronic structure,
  Physica Scripta 41, 629 (1990).


• O. Eriksson, R. C. Albers, A. M. Boring, N. E. Christensen, U. Hillebrecht, and D. D. Sarma,
  Calculated and measured XPS and BIS spectra for the UPtx(x=1,2,3,5), UIrPt4, and UAuPt4 Systems.
  Bull. Am. Phys. Soc. 35, 446 (1990)

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1990 - 1989 - 1988 - 1987- 1986

1989

• D. D. Sarma, C. Carbone, P. Sen, R. Cimino and W. Gudat,
  Origin of Cu and Zn L2- and L3-M45M45 Auger satellites: Breakdown of the sudden approximation,
  Phys. Rev. Lett. 63, 656 (1989).


• D. D. Sarma, P. Sen, C. Carbone, R. Cimino and W. Gudat,
  High-energy spectroscopic study of YBa{2.7}Fe{0.3}O{6.9} with photon energy near O1s threshold,
  Phys. Rev. B (Rapid Comm.) 39, 12387 (1989).


• D. D. Sarma, C. Carbone, P. Sen and W. Gudat,
  Synchrotron-radiation study of the satellites in Ni L3-M45M45 Auger spectra,
  Phys. Rev. B (Rapid Comm.), 40, 12542 (1989).


• D. D. Sarma, S. Ramasesha and A. Taraphder,
  Evidence for hole-pairing within an extended Anderson impurity model applicable to the high Tc cuprates,
  Phys. Rev. B 39, 12286 (1989).


• T. Bandyopadhyay and D. D. Sarma,
  Calculation of Coulomb interaction strengths for 3d transition metals and actinides,
  Phys. Rev. B 39, 3517 (1989).


• D. D. Sarma and A. Taraphder,
  Electronic structure of high Tc cuprates from core level photoemission spectroscopy,
  Phys. Rev. B 39, 11570 (1989).


• D. D. Sarma, W. Speier, R. Zeller, E. van Leuken, R. A. de Groot and J. C. Fuggle,
  The Electronic structure of NiAl and NiSi,
  J. Phys.: Condensed Matter 1, 9131 (1989).


• R. Vijayaraghavan, A. K. Ganguli, N. Y. Vasanthacharya, M. K. Rajumon, G. U. Kulkarni, G. Sankar, D. D. Sarma, A. K. Sood, N. Chandrabhas, and C. N. R. Rao,
  Investigations of novel cuprates of the TlCa{1-x}Ln{x}Sr{2}O{7}� (Ln = rare earth) series showing electron- or hole-superconductivity depending on the composition,
  Supercond. Sci. Technol. 2, 195 (1989).


• M. K. Rajumon, D. D. Sarma, R. Vijayaraghavan and C. N. R. Rao.,
  A core level photoemission spectroscopic study of the electron doped superconductor, Nd{2-x}Ce{x}CuO{4}
  Solid State Comm. 70, 875 (1989).


• G. Ranga Rao, M. K. Rajumon, D. D. Sarma and C. N. R. Rao,
  Oxygen chemistry in copper oxides: Evidence for O1- species,
  J. Chem. Soc., Chem. Commun. 1536 (1989).


• D. D. Sarma and C. N. R. Rao,
  Holes and hole-pairing in the oxygen band of the high-temperature cuprate superconductors,
  Synth. Met., 33, 131 (1989).


• C. N. R. Rao, D. D. Sarma and G. Ranga Rao,
  Investigations of oxide superconductors by x-ray absorption, photoemission and cognate spectroscopies,
  Phase Transitions, 19, 69 (1989).


• G. Ranga Rao, M. S. Hegde, D. D. Sarma and C. N. R. Rao,
  Evidence for holes on oxygen in some nickel oxides,
  J. Phys. : Condens. Matter 1, 2147 (1989).


• W. Speier, L. Kumar, D. D. Sarma, R. A. de Groot and J. C. Fuggle,
  Electronic structire of 4d- and 5d-silicides,
  J. Phys. : Condensed Matter 1, 9117 (1989).


• D. D. Sarma,
  Electronic structure high Tc cuprates by electron spectroscopies, in ``Non-stoichiometric Compounds'',
  Eds. J. Nowotny and W.Weppner, Kluwer Academic Publishers, Dordrecht, The Netherlands, 1989.


• W.Speier, E. V. Leuken, J. C. Fuggle, D. D. Sarma, L. Kumar, B. Dauth, and K. H. Buschow,
  Photoemission and inverse photoemission of transition metal silicides,
  Phys. Rev. B. 39, 6008 (1989).


• D. D. Sarma, P. Sen, C. Carbone, R. Cimino, B. Dauth and W. Gudat,
  Resonant photoemission near the O1s threshold in YBa{2}Cu{2.7}Fe{0.3}O{6.9} in ``High T{c} superconductors: Electronic structure'',
  Eds. A. Bianconi and A. Marcelli, Pergamon Press, 1989, Page 215.

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1990 - 1989 - 1988 - 1987- 1986

1988

• D. D. Sarma,
  Electronic structure of high-T{c} superconductors from core level spectroscopies,
  Phys. Rev. B (Rapid Comm.) 37, 7948 (1988).


• K. Jacobi, D. D. Sarma, P. Geng, C. T. Simmons, and G. Kaindl,
  High-resolution electron-energy-loss spectroscopy of YBa{2}Cu{3}0{7}
  Phys. Rev. B (Rapid Comm.) 38, 863 (1988).


• D. D. Sarma, S. Krummacher, F. U. Hillebrecht and D. D. Koelling,
  5f bandwidth and hybridization in uranium silicides,
  Phys. Rev. B 38, 1 (1988).


• U. Neukirch, C. T. Simmons, P. Sladeczek, C. Laubschat, O. Strebel, G. Kaindl, and D. D. Sarma,
  On the suppression of superconductivity in PrBa{2}-Cu{3}0{7}
  Europhys. Lett. 5, 567 (1988).


• O. Gunnarsson, D. D. Sarma, F. U. Hillebrecht and K. Sch�nhammer,
  Electronic structure of the light actinide oxides from electron spectroscopy,
  J. Appl. Phys., 63, 3676 (1988).


• D. D. Sarma and F. U. Hillebrecht,
  Comment on ``Spectral evidence for the importance of single-site effects in heavy-fermion uranium compounds'',
  Phys. Rev. Lett. 61, 651 (1988).


• D. D. Sarma and K. Sreedhar,
  Electronic structure of square planar [CuO4]6- clusters,
  Z. Phys. B 69, 529 (1988).


• D. D. Sarma, O. Strebel, C. T. Simmons, U. Neukirch, G. Kaindl, R. Hoppe, and H. P. Muller,
  Electronic structure of high-T{c} superconductors from soft x-ray absorption,
  Phys. Rev. B (Brief Rep.) 37, 9784 (1988).


• B. K. Chakraverty, D. D. Sarma and C. N. R. Rao,
  Crucial role of Cu1+ ions and oxygen holes (peroxitons) in the high- temperature superconductivity of cuprates,
  Physica C 156, 413 (1988).


• D. D. Sarma, W. Speier, L. Kumar, C. Carbone, A. Spinsanti, O. Bisi, A.Iandelli, G.L. Olcese, and A. Palenzona,
  Electronic structure of CaSi and CaSi{2},
  Z. Phys. B 71, 69 (1988).


• L. Kumar, D. D. Sarma, and S. Krummacher,
  XPS study of the room temperature surface oxidation of zirconium and its binary alloys with tin, chromium and iron,
  Appl. Surf. Sci. 32, 309 (1988).


• P. Sladeczek, U. Neukirch, C. T. Simmons, O. Strebel, C. Laubschat, D. D. Sarma and G. Kaindl,
  T{c} suppression and rare-earth valency in Y{1-x}M{x}Ba{2}Cu{3}0{7}� (M=Ce, Pr, Tb),
  Physica C 153-155, 916 (1988).


• G. Kaindl, D. D. Sarma, O. Strebel, C. T. Simmons, U. Neukirch, R. Hoppe and H. P. Moller,
  On the 3d-configuration of copper in high-T{c} superconductors,
  Physica C 153-155, 139 (1988).


• A. K. Ganguli, K. S. Nanjundaswamy, G. N.Subbanna, M. K. Rajumon, D. D. Sarma, and C. N. R. Rao,
  Superconductivity in the Tl-Ca-Ba-Cu-0 system : Materials characterization and mechanism,
  Mod. Phys. Lett. B 2, 1169 (1988).


• D. D. Sarma, K. Prabhakaran and C. N. R. Rao,
  Temperature dependence of the surface conductivity of
  YBa{2}Cu{3}0{7}� accompanying the change in the concentration of dimeriged oxygen holes,
  Solid State Comm. 67, 263 (1988).


• D. D. Sarma, K. Prabhakaran and C. N. R. Rao,
  Surface electronic structure of the high-T{c} oxides,
  Physica C 153-155, 151 (1988).


• D. D. Sarma and C. N. R. Rao,
  Nature of the copper species in superconducting YBa{2}Cu{3}0{7},
  Solid State Comm. 65, 47 (1988).


• D. D. Sarma,
  Electron spectroscopic studies of heavy fermions,
  Rev. Solid State Sci. 3 & 4, 429 (1988).


• D. D. Sarma and F. U. Hillebrecht,
  Manifestation of impurity-like behaviour of 5f in electron spectroscopy, in ``Theoretical and experimental aspects of valence fluctuations and heavy fermions'',
  Eds. L.C. Gupta and S.K. Malik, p.383, Plenum Press, 1988.


• D. D. Sarma, S. Krummacher, F. U. Hillebrecht and W. Gudat,
  Soft x-ray absorption spectra of uranium intermetallics, in ``Theoretical and experimental aspects of valence fluctuations and heavy fermions'',
  Eds. L.C. Gupta and S.K. Malik, p. 387, Plenum Press, 1988.


• M. Rekas, D. D. Sarma, and W. Weppner,
  High-T{c} oxide superconductors : Possible effect of interfaces, J. Nowotny, Chapter 16 in Surface and Near Surface Chemistry of Oxide Materials,
  p. 669, Elsevier, Amsterdam (1988).

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1990 - 1989 - 1988 - 1987- 1986

1987

• D. D. Sarma, F. U. Hillebrecht, C. Carbone, and A. Zangwilll,
  5f-bandwidth and resonant photoemission of uranium intermetallics,
  Phys. Rev. B (Rapid Comm.) 36, 2916 (1987).


• D. D. Sarma and P. V. Kamath,
  Estimation of electron-electron interaction strengths for the rare earths by X alpha approximation,
  Phys. Rev. B 36, 7402 (1987).


• D. D. Sarma and C. N. R. Rao,
  Evidence for peroxide and Cu{1+} species in La1.85Sr0.15Cu04 from photoemission studies,
  J. Phys. C 20, L659 (1987).


• C. N. R. Rao, P. Ganguly, M. S. Hegde and D. D. Sarma,
  Holes in the oxygen 2p valence bands and the formation of peroxide- like species in metal oxides: their role in metallicity and superconductivity,
  J. Am. Chem. Soc. 109, 6893 (1987).


• D. D. Sarma, C. T. Simmons, and G. Kaindl,
  On the enhancement of T{c} by exposure to nitrogen in YBa2Cu307
  Nature 330, 213 (1987).


• D. D. Sarma, K. Sreedhar, P. Ganguly, and C. N. R. Rao,
  A photoemission study of YBa{2}Cu{3}O{7} through the superconducting transition : Evidence for oxygen dimerization,
  Phys. Rev. B (Rapid Comm.) 36, 2371 (1987).


• D. D. Sarma, K. Sreedhar, P. Ganguly, and C. N. R. Rao,
  Photoemission studies of the high T{c} superconductor YBa2Cu3O7,
  Phase Transitions 10, 39 (1987).


• C. N. R. Rao, P. Ganguly, J. Gopalakrishnan, and D. D. Sarma,
  Mechanism of high-temperature superconductivity in YBa2Cu307 : Crucial role of oxygen,
  Mat. Res. Bull. 22, 1159 (1987).


• D. D. Sarma, F. U. Hillebrecht and M. S. S. Brooks,
  Electron spectroscopy of valence and core states of U-intermetallic compounds,
  J. Mag. Magn. Mater. 63 & 64, 509 (1987).


• H. J. M. Hoekstra, J. C. Fuggle, W. Speier, and D. D. Sarma,
  Matrix elements in appearance potential spectroscopy of Al and its alloys,
  J. Electron Spectrosc. 42, 27 (1987).


• D. D. Sarma,
  Electron spectroscopic studies of uranium intermetallic compounds,
  Proceedings of the Solid State Physics Symposium, DAE Panthnagar 1987.

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1990 - 1989 - 1988 - 1987- 1986

1986

• D. D. Sarma, F. U. Hillebrecht, W. Speier, N. Martensson, and D. D. Koelling,
  Appearance of correlation effects in U-intermetallics,
  Phys. Rev. Lett. 57, 2215 (1986).


• F. U. Hillebrecht, D. D. Sarma, and N. Martensson,
  Correlation between ligand density of states and 5f delocalization in uranium intermetallics,
  Phys. Rev. B (Rapid Comm.) 33, 4376 (1986).


• D. D. Sarma, S. Krummacher, A. Wallash, and J. E. Crow,
  X-ray photoemission spectroscopy and bremsstrahlung isochromat spectroscopy study of the (Y, U)B4 system,
  Phys. Rev. B 34, 3737 (1986).


• D. D. Sarma, F. U. Hillebrecht, O. Gunnarsson and K. Sch�nhammer,
  Systematics in the core level spectra of Th-intermetallics,
  Z. Phys. B 63, 305 (1986).


• K. Szot, F. U. Hillebrecht, D. D. Sarma, M. Campagna, and H. Arend,
  Surface defect segregation in the perovskite-type ferroelectric KNbO{3},
  Appl. Phys. Lett. 48, 490 (1986).


• S. Krummacher and D. D. Sarma,
  XPS studies of the oxidation of U-Si compounds,
  Surf. Sci. 178, 842 (1986).


• D. Weller and D. D. Sarma,
  Formation of a passive layer in surface oxidation of epitaxial Gd : A LEED and AES study,
  Surf. Sci. 171, L425 (1986).