Nonmagnetic molecular Jahn-Teller Mott insulators

Physical Review B - Condensed Matter and Materials Physics

Volumn 55, Issue 20, 1997, Pages 13465-13472

  Fabrizio, Michele ^a   Tosatti, Erio ^a  

^a SISSA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001587022     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.55.13465     Document Type: Article

References (21)

1. Even though the high-spin state is energetically favorable, the role played by the Jahn-Teller effect may be still relevant in determining both the structural and the magnetic properties of the insulator (see, e.g., K.I. Kugel and D.I. Khomskii, Usp. Fiz. Nauk 136, 621 (1982) [Sov. Phys. Usp. 25, 231 (1982)]).
2. R. Englman, The Jahn-Teller Effect in Molecules and Crystals (Wiley, New York, 1973).
3. A more proper inclusion of higher excited states has been considered for the quarter filling case by N. Manini, E. Tosatti and S. Doniach, Phys. Rev. B 51, 3731 (1995).
4. S.C. Erwin, in Buckminsterfullerenes, edited by W.E. Billups and M.A. Ciufolini (VCH, New York, 1992).
5. For resistivity measurements see F. Stepniak, P.J. Benning, D.M. Poirier and J.H. Weaver, Phys. Rev. B 48, 1899 (1993).
6. R.C. Haddon, A.S. Perel, R.C. Morris, S.-H. Chang, A.T. Fiory, A.F. Hebard, T.T.M. Palstra and G.P. Kochanski, Chem. Phys. Lett. 218, 100 (1994).
7. ESR measurements have been performed, e.g., by M. Kosaka, K. Tanigaki, I. Hirosawa, Y. Shimakawa, S. Kuroshima, T.W. Ebbesen, J. Mizuki and Y. Kubo, Chem. Phys. Lett. 203, 429 (1993).
8. For optical conductivity experiments see Y. Iwasa, S. Watanabe, T. Kaneyasu, T. Yasuda, T. Koda, M. Nagata and N. Mizutani, J. Phys. Chem. Solids 54, 1795 (1993).
9. For photoemission and yield spectroscopy measurements see M. De Seta and F. Evangelisti, Phys. Rev. Lett. 71, 2477 (1993).
10. F. Evangelisti, Phys. Rev. B 51, 1096 (1995).
11. R. Kerkoud, P. Auban-Senzier, D. Jérome, S. Brazovskii, I. Luk'yanchuk, N. Kirova, F. Rachdi and C. Goze, J. Phys. Chem. Solids 57, 143 (1996).
12. I. Lukyanchuk, N. Kirova, F. Rachdi, C. Goze, P. Molinie and M. Mehring, Phys. Rev. B 51, 3978 (1995).
13. R.W. Lof, M.A. van Veenendaal, B. Koopmans, H.T. Jonkman and G.A. Sawatzky, Phys. Rev. Lett. 26, 3924 (1992).
14. P.A. Brühwiler, A.J. Maxwell, A. Nilsson and N. Martensson, Phys. Rev. B 48, 18 296 (1993).
15. A. Auerbach, N. Manini and E. Tosatti, Phys. Rev. B 49, 12 998 (1994).
16. N. Manini, E. Tosatti and A. Auerbach, Phys. Rev. Bibid. 49, 13 008 (1994).
17. J. Ihm, Phys. Rev. B 49, 10 726 (1994).
18. The theoretical estimate [see, e.g., Ref. 16 or N. Manini and E. Tosatti, in Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials: Volume 2, edited by K.M. Kadish and R.S. Ruoff (The Electrochemical Society, Pennington, NJ, 1995)] is in good agreement with the EPR measurements of G. Vökel, A. Pöppl, J. Simon, J. Hoentsch, S. Orlinskii, H. Klos and B. Gotschy, Phys. Rev. B 52, 10 188 (1995).
19. O. Gunnarsson, E. Koch, and R.M. Martin (unpublished).
20. R.M. Fleming, Nature (London) 352, 701 (1991).
21. O. Zhou and D.E. Cox, J. Phys. Chem. Solids 53, 1373 (1992).