Nesting, spin fluctuations, and odd-gap superconductivity in Na xCoO2 · yH2O

Physical Review Letters

Volumn 93, Issue 9, 2004, Pages

  Johannes, M D ^a   Mazin, I I ^a   Singh, D J ^a   Papaconstantopoulos, D A ^a  

^a NAVAL RESEARCH LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BAND STRUCTURE; CARRIER CONCENTRATION; ELECTROSTATICS; ERROR ANALYSIS; FERMI LEVEL; HYDRATES; MAGNETIC SUSCEPTIBILITY; POSITIVE IONS; RELAXATION PROCESSES; SODIUM COMPOUNDS;

MUON SPIN RELAXATION; NESTING STRUCTURES; NUCLEAR QUADRUPOLE RESONANCE (NQR); SPIN FLUCTUATIONS;

SUPERCONDUCTING MATERIALS;

EID: 19544380728     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.93.097005     Document Type: Article

References (32)

1. I. Terasaki, Y. Sasago, and K. Uchinokura, Phys. Rev. B 56, 12685 (1997).
2. Y. Y. Wang et al., Nature 423, 425 (2003).
3. Y. Ando et al., Phys. Rev. B 60, 10580 (1999).
4. Q. Huang et al., cond-mat/0402255 (2004).
5. G. Baskaran, Phys. Rev. Lett. 91, 097003 (2003).
6. S. Y. Li et al., Phys. Rev. Lett. 93, 056401 (2004).
7. B.C. Sales et al., cond-mat/0402379 (2004).
8. D. Allender, J. Bray, and J. Bardeen, Phys. Rev. B 7, 1020 (1973).
9. D. J. Singh, Phys. Rev. B 61, 13397 (2000).
10. D. J. Singh, Phys. Rev. B 68, 020503 (2003).
11. A. T. Boothroyd et al., cond-mat/0312589 (2003).
12. W. Higemoto et al., cond-mat/0310324 (2003).
13. A. Kanigel et al., cond-mat/0311427 (2003).
14. T. Waki et al., cond-mat/0306036 (2003).
15. T. Fujimoto et al., Phys. Rev. Lett. 92, 047004 (2004).
16. K. Ishida et al., J. Phys. Soc. Jpn. 72, 3041 (2003).
17. Y. Kobayashi, M. Yokoi, and M. Sato, J. Phys. Soc. Jpn. 72, 2453 (2003).
18. K.-W. Lee, J. Kunes, and W.E. Pickett, Phys. Rev. B 70, 045104 (2004).
19. 2g-derived bands. It is reasonable to assume that LDA predictions will be similarly successful for the cobaltate compound The ultimate answer should be given by bulk quantum oscillation experiments.
20. M.Z. Kasan et al., Phys. Rev. Lett. 92, 246402 (2004).
21. H.-B. Yang et al., Phys. Rev. Lett. 92, 246403 (2004).
22. M. D. Johannes and D. J. Singh, Phys. Rev. B 70, 014507 (2004).
23. P. Blaha et al., Wien2k, an Augmented Plane Wave + Local Orbitals Program for Calculating Crystal Properties (Karlheinz Schwarz, Technical University of Wien, Vienna, 2002), ISBN 3-9501031-1-2.
24. D. A. Papaconstantopoulos and M. J. Mehl, J. Phys. Condens. Matter 15, R413 (2003).
25. M. D. Johannes et al., Euro. Phys. Lett. (to be published).
26. g′ component. For the qualitative discussion here, the constant matrix elements approximation is sufficient.
27. Figure 3 applies to hydrated NCO with x = 0.3. Unhydrated NCO is less two-dimensional and even less as x increases. However, we expect the unhydrated compound to have similar nesting properties, albeit less pronounced.
28. Y. Fuseya, H. Kohno, and K. Miyake, J. Phys. Soc. Jpn. 72, 2914 (2003).
29. V.L. Berezinskii, JETP Lett. 20, 287 (1974).
30. C.T. Rieck, K. Scharnberg, and N. Schopohl, J. Low Temp. Phys., 84, 381 (1991); A. Balatsky and E. Abrahams, Phys. Rev. B 45, 13125 (1992).
31. C.T. Rieck, K. Scharnberg, and N. Schopohl, J. Low Temp. Phys., 84, 381 (1991); A. Balatsky and E. Abrahams, Phys. Rev. B 45, 13125 (1992).
32. M. Yokoi et al., cond-mat/0312242 (2003).