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Bond-Length Fluctuations in the Copper-Oxide Superconductors

Published online by Cambridge University Press:  18 March 2011

John B. Goodenough
John B. Goodenough*
Affiliation:
Texas Materials Institute, University of Texas at Austin, Austin, TX 78712
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Abstract

The phase diagram of La2-xSrxCuO4 is interpreted. From the virial theorem, it is argued that the cross-over from localized to itinerant electronic behavior in the range 0 < x < 0.3 is characterized by fluctuations between two equilibrium Cu-O bond lengths. Cooperative local fluctuations give rise to one-hole correlation bags of 5 to 6 copper centers on the underdoped side, to strong-correlation fluctuations in an itinerant-electron matrix on the overdoped side. Spinodal phase segregation between an antiferromagnetic, insulating parent phase and the superconductive phase occurs in the underdoped compositions, between the superconductive phase and the metallic overdoped phase on the other side of the phase diagram. Ordering of the fluctuations into a travelling bipolaronic charge-density/spin-density wave of composition x ≈?1/6 yields heavy fermions of symmetry (x2− y2) coexisting with light electrons; the high-temperature superconductive pairs are condensed out from the heavy fermions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 689: Symposium E – Materials for High-Temperature Superconductor Technologies , 2001 , E3.1
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Bersuker, I. B., Electronic-Structure and Properties of Transition Metal Compounds (John Wiley & Sons, Inc, 1996) pp. 297, 320.Google Scholar
2. Goodenough, J. B., Ferroelectrics 130, 77 (1992).Google Scholar
3. Goodenough, J. B., Progress in Solid State Chemistry 5, 145 (1971).Google Scholar
4. Zhou, J.-S. and Goodenough, J. B., Phys. Rev. B 54, 12,488 (1996).Google Scholar
5. Zhang, F. C. and Rice, T. M., Phys. Rev. B 37, 3759 (1988).Google Scholar
6. Bersuker, G. I. and Goodenough, J. B., Physica C 274, 267 (1997).Google Scholar
7. Tranquada, J. M. et al, Phys. Rev. B 59, 14712 (1999).Google Scholar
8. Egami, T., Petrov, Y., and Louca, D., J. Supercond.: Incorp. Novel Magnetism 13, 709 (2000).Google Scholar
9. Kawamata, T., Adachi, T., Noji, T., and Koike, Y., Phys. Rev. B 62, R11981 (2000).Google Scholar
10. Inoue, I. H. et al, Phys. Rev. Lett. 74, 2539 (1995).Google Scholar
11. Zhou, J-S. and Goodenough, J. B., Phys. Rev. B 54, 13, 393 (1996).Google Scholar
12. Zhou, J-S. and Goodenough, J. B., Phys. Rev. B 51, 3104 (1995).Google Scholar
13. Takagi, H. et al, Phys. Rev. Lett. 69, 2975 (1992).Google Scholar
14. Bozin, E. S., Billinge, S. J. L., Kwei, G. M., and Takagi, H., Phys. Rev. B 60, 15,345 (1999).Google Scholar
15. Zhou, J.-S. and Goodenough, J. B., Phys. Rev. B 60, R 15,002 (1999).Google Scholar
16. Campanzano, J. C. et al, Phys. Rev. Lett. 64, 2308 (1990); N. L. Saini et al Phys. Rev. Lett. 79, 3467 (1997); Z.-X. Shen et al, Science 280, 259 (1998); M. R. Norman et al, Nature 392, 157 (1998); Y.-D. Chuang et al, Phys. Rev. Lett. 83, 3717 (1999); T. Mizokawa, Phys. Rev. B 60, 12335 (1999).Google Scholar
17. Deutscher, G., and Dagan, Y., J Supercond: Incorp. Novel Magnetism 13, 699 (2000).Google Scholar
18. Yan, J. and Zhou, J.-S. (unpublished).Google Scholar
19. Goodenough, J. B., Zhou, J.-S., and Chan, J.-S., Phys. Rev. B 47, 5275 (1993).Google Scholar
20. Kyung, B., Phys. Rev. B 64, 104512 (2001).Google Scholar
21. Zhou, J.-S. and Goodenough, J. B., Phys. Rev. B 51, 3104 (1995); Phys. Rev. Lett. 77, 151 (1996).Google Scholar
22. Garcia-Muñoz, J. L. Rodriguez-Cavajal, J., and Lacorre, P., Europhys. Lett. 20, 241 (1992); J. Rodriquez-Cavajal et al, Phys. Rev. B 57, 456 (1998).Google Scholar
23. Alonso, J. A. et al, Phys. Rev. Lett. 82, 3871 (1999); Phys. Rev. B 61, 1756 (2000); Phys. Rev. B 64, 094102 (2001).Google Scholar
24. Zhou, J.-S. and Goodenough, J. B., Phys. Rev. B 64, 024421; 140101 (2001).Google Scholar
25. Cohn, J. L. et al, Phys. Rev. B 45, 511 (1992); K. Krishana et al, Science 277, 83 (1997).Google Scholar