Nature of the spin-singlet ground state in CaCuGe2O6

Physical Review B - Condensed Matter and Materials Physics

Volumn 66, Issue 5, 2002, Pages 544261-544264

  Valentí, Roser ^a   Saha Dasgupta, T ^b   Gros, Claudius ^a  

^a SAARLAND UNIVERSITY   (Germany)

^b S N BOSE NATIONAL CENTRE FOR BASIC SCIENCES   (India)

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM DERIVATIVE; COPPER DERIVATIVE; GERMANIUM DERIVATIVE; METAL OXIDE;

ARTICLE; CRYSTAL STRUCTURE; MAGNETIC FIELD; MAGNETISM; MONTE CARLO METHOD; QUANTUM MECHANICS; TEMPERATURE DEPENDENCE; THERMODYNAMICS;

EID: 4243874497     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.66.054426     Document Type: Article

References (24)

1. S. Taniguchi, T. Nishikawa, Y. Yasui, Y. Kobayashi, M. Sato, T. Nishioka, M. Kontani, and K. Sano, J. Phys. Soc. Jpn. 64, 2758 (1995).
2. D.C. Johnston, J.W. Johnson, D.P. Goshorn, and A.J. Jacobson, Phys. Rev. B 35, 219 (1987).
3. 9 is argued to be small due to strong cancellation among the various superexchange processes.
4. W.E. Pickett, Phys. Rev. Lett. 79, 1746 (1997); C.S. Hellberg, W.E. Pickett, L.L. Boyer, H.T. Stokes, and M.J. Mehl, J. Phys. Soc. Jpn. 68, 3489 (1999).
5. W.E. Pickett, Phys. Rev. Lett. 79, 1746 (1997); C.S. Hellberg, W.E. Pickett, L.L. Boyer, H.T. Stokes, and M.J. Mehl, J. Phys. Soc. Jpn. 68, 3489 (1999).
6. D.A. Tennant, S.E. Nagler, A.W. Garrett, T. Barnes, and C.C. Torardi, Phys. Rev. Lett. 78, 4998 (1997).
7. M. Hase, I. Terasaki, and K. Uchinokura, Phys. Rev. Lett. 70, 3651 (1993).
8. Y. Sasago, M. Hase, K. Uchinokura, M. Tokunaga, and N. Miura, Phys. Rev. B 52, 3533 (1995).
9. A. Zheludev, G. Shirane, Y. Sasago, M. Hase, and K. Uchinokura, Phys. Rev. B 53, 11 642 (1996).
10. M. Behruzi, K.-H. Breuer, and W. Eysel, Z. Kristallogr. 176, 205 (1986).
11. 6 structure, O1A, O2A, O3A, O1B, O2B, O3B following the notation of Behruzi et al. (Ref. 9).
12. J.P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett. 77, 3865 (1996).
13. P. Blaha, K. Schwarz, and J. Luitz, computer code WIEN97, A Full Potential Linearized Augmented Plane Wave Package for Calculating Crystal Properties, Karlheinz Schwarz, Technical University of Wien, Vienna, 1999 [updated version of P. Blaha, K. Schwarz, P. Sorantin, and S.B. Trickey, Comput. Phys. Commun. 59, 399 (1990)].
14. O.K. Andersen, Phys. Rev. B 12, 3060 (1975).
15. O.K. Andersen and T. Saha-Dasgupta, Phys. Rev. B 62, R16 219 (2000) and references therein.
16. F. Parmigiani, L. Sangaletti, A. Goldoni, U. del Pennino, C. Kim, Z.-X. Shen, A. Revcolevschi, and G. Dhalenne, Phys. Rev. B 55, 1459 (1997).
17. A.W. Sandvik, Phys. Rev. B 59, R14 157 (1999).
18. A. Dorneich and M. Troyer, Phys. Rev. E 64, 066701 (2001).
19. D.C. Johnston, R.K. Kremer, M. Troyer, X. Wang, A. Klümper, S.L. Bud'ko, A.F. Panchula, and P.C. Canfield, Phys. Rev. B 61, 9558 (2000).
20. Y. Mizuno et al., Phys. Rev. B 57, 5326 (1998).
21. J.B. Goodenough, Phys. Rev. 100, 564 (1955); J. Kanamori, J. Phys. Chem. Solids 10, 87 (1959); P.W. Anderson, Solid State Phys. 14, 99 (1963).
22. J.B. Goodenough, Phys. Rev. 100, 564 (1955); J. Kanamori, J. Phys. Chem. Solids 10, 87 (1959); P.W. Anderson, Solid State Phys. 14, 99 (1963).
23. J.B. Goodenough, Phys. Rev. 100, 564 (1955); J. Kanamori, J. Phys. Chem. Solids 10, 87 (1959); P.W. Anderson, Solid State Phys. 14, 99 (1963).
24. R. Valentí, T. Saha-Dasgupta, J.V. Alvarez, K. Pozgajcic, and C. Gros, Phys. Rev. Lett. 86, 5381 (2001).