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Perspectives on the Theory of the New High Tc Superconducting Oxides

Published online by Cambridge University Press:  29 November 2013

V.J. Emery
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Extract

There is a widespread feeling that the discovery of high temperature superconductors will force us to change our way of thinking about superconductivity in solids. It has steadily emerged that the simple free-electron picture is inadequate, that a new mechanism of superconductivity is most likely at work, and that modifications (if not outright revisions of the many-body theory) are needed. The situation is not entirely without precedent: much the same could have been said of superfluidity in liquid He. That, however, did not cause such a stir: it had been anticipated some 12 years before its eventual discovery, and the transition temperature of liquid He is so low that experiments have been confined to the few laboratories around the world with a milli-kelvin capability. Finally, the normal state of He was already wellunderstood, so that theorists were poised and ready to tackle the problems posed by the superfluid.

Contrast the oxides. Even the rather extensive earlier studies of Ba1-x PbxBiO3 and other superconducting oxides did not prepare us for the advances of the past two years. Laboratories all over the world have been able to prepare and study the new superconductors rather easily, although well-characterized samples and incisive experiments have not been so easy to come by. The flood of new information poses a particular challenge for condensed matter theory — to distil the essence of these complicated multicomponent materials and to explain how the genie of high temperature superconductivity has escaped after so many years. Despite the existing understanding of the properties of oxides, much work remains to be done before we have a good grip on the many-body theory of these strongly correlated systems.

Type
High Tc Superconductors
Information
MRS Bulletin , Volume 14 , Issue 1 , January 1989 , pp. 67 - 71
Copyright
Copyright © Materials Research Society 1989

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References

1.Bednorz, J.G. and Müller, K.A., Z. Phys. B 64 (1986) p. 189.CrossRefGoogle Scholar
2. For a review see: Leggett, A.J. and Wheatley, J.C., Rev. Mod. Phys. 47 (1975) p. 331.CrossRefGoogle Scholar
3. For a review see: Batlogg, B., Physica 126B (1984) p. 275.Google Scholar
4.Johnston, D.C. and Zisk, F. (this issue of the MRS Bulletin).Google Scholar
5.Emery, V.J., Phys. Rev. Lett. 58 (1987) p. 2794.CrossRefGoogle Scholar
6. For a review see: Wendin, G. (to be published).Google Scholar
7.Tranquada, J.M., Heald, S.M., Moodenbaugh, A.R., and Suenaga, M., Phys. Rev. B 35 (1987) p. 1613; J.M. Tranquada, S.M. Heald, and A.R. Moodenbaugh, ibid. 36 (1987) p. 5263.Google Scholar
8.Nücker, N.et al., Z. Phys. B 67 (1987) p. 9; N. Nücker et al., Phys. Rev. B 37 (1988) p. 5158.CrossRefGoogle Scholar
9.Nücker, N.et al., (to be published).Google Scholar
10.Mattheiss, L.F., Phys. Rev. Lett. 58 (1987) p. 1028; J. Yu, A.J. Freeman, and J.-H. Xu, Phys. Rev. Lett. 58 (1987) p. 1035.CrossRefGoogle Scholar
11.Guo, Y., Langlois, J-M., Goddard, W.A., Science 239 (1988) p. 896.CrossRefGoogle Scholar
12.Anderson, P.W., Science 235 (1987) p. 1196.CrossRefGoogle Scholar
13.Gros, C., Joynt, R., and Rice, T.M., Phys. Rev. B 38 (1987) p. 8190.Google Scholar
14.Emery, V.J. and Reiter, G., Phys. Rev. B 38 (1988) p. 4547.CrossRefGoogle Scholar
15.Zhang, F.C. and Rice, T.M., Phys. Rev. B 37 (1988) p. 3759.CrossRefGoogle Scholar
16.Emery, V.J. and Reiter, G., Phys.Rev. B 38 (1988).Google Scholar
17.Kitaoka, Y., et al., (to be published).Google Scholar
18. See articles in Low-Dimensional Conductors and Superconductors, edited by Jerome, D. and Caron, L.G. (Plenum, New York, 1987).CrossRefGoogle Scholar
19.Lin, H.Q., Hirsch, J.E., and Scalapino, D.J., Phys. Rev. B 37 (1988) p. 7359; M. Imada, J. Phys. Soc. japan 56 (1987) p. 3793; J.E. Hirsch, S. Tang, E. Loh, and D.J. Scalapino, Phys. Rev. Lett. 60 (1988) p. 1668; M. Ogata and H. Shiba (to be published).CrossRefGoogle Scholar
20.Schulz, H.J., Europhys. Lett. 4 (1987) p. 609; J.R. Schrieffer, X.G. Wen, and S.C. Zhang, Phys. Rev. Lett. 60 (16988) p. 944.CrossRefGoogle Scholar
21.Nagaoka, Y., Phys. Rev. 147 (1966) p. 392; W.F. Brinkman and T.M. Rice, Phys. Rev. B 2 (1970) p. 1324.CrossRefGoogle Scholar
22.Siggia, E.D., Phys. Rev. Lett. 60 (1988) p. 740; S.A. Trugman, Phys. Rev. B 37 (1988) p. 1597; S. Sachdev (to be published); C.L. Kane, P.A. Lee, and N. Read, (to be published); R. Gooding (to be published); V.J. Emery and H.Q. Lin (to be published).Google Scholar
23.Aharony, A.et al., Phys. Rev. Lett. 60 (1988) p. 1330.CrossRefGoogle Scholar
24.Kivelson, S.A., Rokhsar, D.S., and Sethna, J.P., Phys. Rev. B 35 (1987) p. 8865.CrossRefGoogle Scholar
25.Baskaran, G., Zou, Z., and Anderson, P.W., Solid State Commun. 63 (1987) p. 973.CrossRefGoogle Scholar
26.Laughlin, R.B., Science 242 (1988) p. 525; E. Mele (to be published); P. Wiegmann (to be published).CrossRefGoogle Scholar
27.Anderson, P.W. in the Proceedings of the International School of Physics, “Enrico Fermi,” edited by Schrieffer, J.R. and Broglia, R.A. (North-Holland, Amsterdam, 1987).Google Scholar
28.Wheatley, J.M., Hsu, T.C., and Anderson, P.W., Phys. Rev. B 37 (1988) p. 5897.CrossRefGoogle Scholar
29.Birgeneau, R.J.et al., Phys. Rev. B 38 (1988) p. 6614; R.J. Birgeneau, et al. (to be published).CrossRefGoogle Scholar
30.Lyons, K.B.et al., Phys. Rev. Lett. 60 (1988) p. 732.CrossRefGoogle Scholar
31.Bardeen, J., Cooper, L.N., and Schrieffer, J.R., Phys. Rev. 108 (1957) p. 1175.CrossRefGoogle Scholar
32. See articles in: Superconductivity, edited by Parks, R.D. (Dekker, New York, 1969).Google Scholar
33.Esteve, D.et al., Europhys. Lett. 3 (1987) p. 1237; C.E. Gough, et al., Nature 326 (1987) p. 855.CrossRefGoogle Scholar
34.Emery, V.J., Nature 333 (1987) p. 14.CrossRefGoogle Scholar
35.Emery, V.J. and Sessler, A.M., Phys. Rev. 119 (1960) p. 248; V.J. Emery, ibid., 161 (1967) p. 194.CrossRefGoogle Scholar
36.Uemura, Y.J.et al., Phys. Rev. 38 (1988) p. 909.CrossRefGoogle Scholar
37.Harshman, D.R.et al., Phys. Rev. B 36 (1987) p. 2386.CrossRefGoogle Scholar
38.Krusin-Elbaum, L.et al., (to be published).Google Scholar
39. See articles in: Novel Superconductivity, edited by Wolf, S.A. and Kresin, V.Z. (Plenum, New York, 1987).CrossRefGoogle Scholar