Electronic structure and photoemission studies on Kondo semimetal U\(\mathsf{_2}\)Ru\(\mathsf{_2}\)Sn

  • G. Chelkowska
  • J. A. Morkowski
  • A. Szajek
  • J. Stepien-Damm
  • R. Troc
OriginalPaper

Abstract.

Electronic structure is studied of the compound U2Ru2Sn showing Kondo type anomalies. The X-ray photoemission spectrum (XPS) on a single crystal was measured and the crystal structure refinement was done. The electronic band structure was calculated by the tight-binding linear muffin-tin orbital method in the atomic sphere approximation, with non-local corrections to the exchange-correlation potential and spin-orbit effects included. The XPS valence band is well reproduced by the calculated one. Calculations suggest metallic character of U2Ru2Sn and give the electronic specific heat coefficient by a factor 1.4 larger than the experimental value reported in literature.

Keywords

Electronic Band Structure Orbital Method Sphere Approximation Atomic Sphere Metallic Character 

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References

  1. 1.
    Z. Fisk, J.L. Sarrao, S.L Cooper, P. Nyhus, G.S. Boebinger, A. Passner, P.C. Canfield, Physica B 223-224, 409 (1996)Google Scholar
  2. 2.
    T. Takabatake, F. Iga, T. Yoshino, Y. Echizen, K. Katoh, K. Kobayashi, M. Higa, N. Shimizu, Y. Bando, G. Nakamoto, H. Fujii, K. Izawa, T. Suzuki, T. Fujita, M. Sera, M. Hiroi, K. Maezawa, S. Mock, H.v. Löhneysen, A. Brückl, K. Neumaier, K. Andres, J. Magn. Magn. Mater. 177-181, 277 (1998)Google Scholar
  3. 3.
    P. Salamakha, O. Sologup, T. Suemitsu, T. Takabatake J. Alloys Compd. 313, L5 (2000)Google Scholar
  4. 4.
    T. Sasakawa, T. Suemitsu, J. Kitagawa, O. Sologub, P. Salamakha, T. Takabatake, J. Phys.: Condens. Matter 14, L267 (2002)Google Scholar
  5. 5.
    S. Yoshii, M. Kasaya, H. Takahashi, N. Mori, Physica B 223-224, 421 (1996)Google Scholar
  6. 6.
    T. Kasuya, J. Phys. Soc. Jpn 63, 2037 (1994)Google Scholar
  7. 7.
    K. Nakamura, Y. Kitaoka, K. Asayama, T. Takabatake, H. Tanaka, H. Fujii, J. Phys. Soc. Jpn 63, 433 (1994)Google Scholar
  8. 8.
    D.N. Davydov, S. Kambe, A.G.M. Jansen, P. Wyder, N. Wilson, G. Lapertot, J. Flouquet, Phys. Rev. B 55, R7299 (1997)Google Scholar
  9. 9.
    S. Nishigori, H. Goshima, T. Suzuki, T. Fujita, G. Nakamoto, H. Tanaka, T. Takabatake, H. Fujii, J. Phys. Soc. Jpn 65, 2614 (1996)Google Scholar
  10. 10.
    T. Terashima, C. Terakura, S. Uji, H. Aoki, Y. Echizen, T. Takabatake, Physica B 312-313, 213 (2002)Google Scholar
  11. 11.
    H. Kumigashira, T. Takahashi, S. Yoshii, M. Kasaya, Physica B 312-313, 208 (2002)Google Scholar
  12. 12.
    T.J. Hammond, G.A. Gehring, M.B. Suvasini, W.M. Temmerman, Phys. Rev. B 51, 2994 (1995)CrossRefGoogle Scholar
  13. 13.
    A. Ślebarski, A. Jezierski, A. Zygmunt, S. Mähl, M. Neumann, G. Borstel, Phys. Rev. B 54, 13 551 (1996)Google Scholar
  14. 14.
    A. Ślebarski, A. Jezierski, A. Zygmunt, S. Mähl, M. Neumann, Phys. Rev. B 58, 13498 (1998)CrossRefGoogle Scholar
  15. 15.
    F. Mirambet, B. Chevalier, L. Fournés, P. Gravereau, J. Etorneau, J. Alloys Compd. 203, 29 (1994)CrossRefGoogle Scholar
  16. 16.
    L. Menon, P. de V. du Plessis, A.M. Strydom, Solid State Commun. 106, 515 (1998)Google Scholar
  17. 17.
    P. de V. du Plessis, A.M. Strydom, R. Troć, L. Menon, J. Phys.: Condens. Matter 13, 8375 (2001)CrossRefGoogle Scholar
  18. 18.
    V.H. Tran, S. Paschen, A. Rabis, M. Baenitz, F. Steglich, P. de V. du Plessis, A.M. Strydom, Physica B 312-313, 215 (2002)Google Scholar
  19. 19.
    S. Paschen, M. Baenitz, V.H. Tran, A. Rabis, F. Steglich, W. Carrilo-Cabrera, Yu. Grin, A.M. Strydom, P. de V. du Plessis, J. Phys. Chem. Solids 63, 1183 (2002)CrossRefGoogle Scholar
  20. 20.
    A.M. Strydom, R. Troć, Solid State Comm. 126, 207 (2003)Google Scholar
  21. 21.
    O.K. Andersen, O. Jepsen, M. Šob, in Electronic Structure and Its Applications, edited by M.S. Yussouff (Springer, Berlin, 1987), p. 2Google Scholar
  22. 22.
    G. Krier, O. Jepsen, A. Burkhardt, O.K. Andersen, The TB-LMTO-ASA Program (source code, version 4.7)Google Scholar
  23. 23.
    B.I. Min, Y-R. Jang, J. Phys.: Condens. Matter 3, 5131 (1991)CrossRefGoogle Scholar
  24. 24.
    J.P. Perdew, J.A. Chevary, S.H. Vosko, K.A. Jackson, M.R. Pederson, D.J. Singh, C. Fiolhais, Phys. Rev. B 46, 6671 (1992)CrossRefGoogle Scholar
  25. 25.
    O. Jepsen, O.K. Andersen, Solid State Commun. 9, 1763 (1971)CrossRefGoogle Scholar
  26. 26.
    O. Jepsen, O.K. Andersen, Phys. Rev. B 29, 5965 (1984)CrossRefGoogle Scholar
  27. 27.
    P. Blöchl, O. Jepsen, O.K. Andersen, Phys. Rev. B 49, 16 223 (1994)Google Scholar
  28. 28.
    J.J. Yeh, I. Lindau, At. Data Nucl. Data Tables 32, 1 (1985)MATHGoogle Scholar
  29. 29.
    M. Diviš, M. Olšovec, M. Richter, H. Eschrig, J. Mag. Magn Mater. 140-144, 1365 (1994)Google Scholar
  30. 30.
    S.F. Matar, J. Magn. Magn. Mater. 151, 263 (1995)CrossRefGoogle Scholar
  31. 31.
    S. Tougaard, J. Electron Spectrosc. Relat. Phenom. 52, 243 (1990)CrossRefGoogle Scholar
  32. 32.
    S. Doniach, Šunjić, J. Phys. C 3, 285 (1970)CrossRefGoogle Scholar
  33. 33.
    M.A. van Veenendaal, H. Eskes, G.A. Sawatzky, Phys. Rev. B 47, 11 462 (1993)CrossRefGoogle Scholar
  34. 34.
    A.E. Bocquet, T. Mizokawa, A. Fujimori, M. Matoba, S. Anzani, Phys. Rev. B 52, 13 838 (1995)CrossRefGoogle Scholar
  35. 35.
    T. Ejima, S. Suzuki, S. Sato, N. Sato, S. Fujimori, M. Yamada, K. Sato, T. Komatsubara, T. Kasuya, Y. Tezuka, S. Shin, T. Ishii, J. Phys. Soc. Jpn 63, 2428 (1994)Google Scholar
  36. 36.
    S. Anthonysamy, G. Pannerselvam, S. Bera, S.V. Narasimhan, P.R. Vasudera Rao, J. Nucl. Mat. 281, 15 (2000)CrossRefGoogle Scholar
  37. 37.
    G. Chełkowska, J.A. Morkowski, A. Szajek, R. Troć, Phil. Mag. B 82, 1893 (2002)CrossRefGoogle Scholar
  38. 38.
    G. Zwicknagl, A.N. Yaresko, P. Fulde, Phys. Rev. B 65, 081103(R) (2002)CrossRefGoogle Scholar
  39. 39.
    L. Havela, V. Sechovský, P. Svoboda, H. Nakotte, K. Prokeš, F.R. de Boer, A. Seret, J.M. Winand, J. Rebizant, J.C. Spirlet, A. Purvanto, R.A. Robinson, J. Magn. Magn. Mater. 140-144, 1367 (1995)Google Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • G. Chelkowska
    • 1
  • J. A. Morkowski
    • 2
  • A. Szajek
    • 2
  • J. Stepien-Damm
    • 3
  • R. Troc
    • 3
  1. 1.A. Chelkowski Institute of PhysicsSilesian UniversityKatowicePoland
  2. 2.Institute of Molecular PhysicsPolish Academy of SciencesPoznanPoland
  3. 3.W. Trzebiatowski Institute of Low Temperature and Structure ResearchPolish Academy of SciencesWroclawPoland

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