Qualitative understanding of the highest Tc cuprates

被引：20

作者：

Geballe, TH ^{[1
]}

Moyzhes, BY ^{[1
]}

机构：

[1] Stanford Univ, Adv Mat Lab, Stanford, CA 95305 USA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2000年 / 341卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0921-4534(00)01112-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We use two old ideas for which layered structures are particularly relevant. The first is that the pairing can occur in different parts of the unit cell and interact symbiotically, behaving in some ways as a natural realization of the sandwich models discussed in the early days of this conference. Pairing and large current flow in the CuO(2) layers are enhanced by additional pairing in other layers. The second idea is that additional pairing interactions can be due to negative U-atoms (Tl(+3)-Tl(+1)), molecules (Hg(2)(+2)-2Hg(+2)), or due to interactions in the quasi one-dimensional Cu-O chain layers of the YBCO-123 and 248 cuprates. Further, coulomb interactions in the CuO(2) planes between pairs moving in a and b directions lead to d-wave superconductivity.

引用

页码：1821 / 1824

页数：4

共 18 条

[1]

ALLENDER D, 1973, PHYS REV B, V7, P1026

[2]

ALLENDER D, 1973, PHYS REV B, V8, P4443

[3] MODEL FOR ELECTRONIC-STRUCTURE OF AMORPHOUS-SEMICONDUCTORS [J].

ANDERSON, PW .

PHYSICAL REVIEW LETTERS, 1975, 34 (15) :953-955

[4] INPLANE ANISOTROPY OF THE PENETRATION DEPTH IN YBA2CU3O7-X AND YBA2CU4O8 SUPERCONDUCTORS [J].

BASOV, DN ;

LIANG, R ;

BONN, DA ;

HARDY, WN ;

DABROWSKI, B ;

QUIJADA, H ;

TANNER, DB ;

RICE, JP ;

GINSBERG, DM ;

TIMUSK, T .

PHYSICAL REVIEW LETTERS, 1995, 74 (04) :598-601

[5] SUPERCONDUCTIVITY NEAR 30-K WITHOUT COPPER - THE BA0.6K0.4BIO3 PEROVSKITE [J].

CAVA, RJ ;

BATLOGG, B ;

KRAJEWSKI, JJ ;

FARROW, R ;

RUPP, LW ;

WHITE, AE ;

SHORT, K ;

PECK, WF ;

KOMETANI, T .

NATURE, 1988, 332 (6167) :814-816

[6]

CHERNIK IA, 1981, PISMA ZH TEKH FIZ, V7, P94

[7]

COTTON F, 1988, ADV INORG CHEM, P128

[8]

GEBALLE TH, 1999, P MAT RES SOC 0405

[9]

Ginzburg V. L., 1964, ZH EKSP TEOR FIZ+, V47, P2318

[10] Anisotropic resistivity of YBa2Cu4O8: Incoherent-to-metallic crossover in the out-of-plane transport [J].

Hussey, NE ;

Nozawa, K ;

Takagi, H ;

Adachi, S ;

Tanabe, K .

PHYSICAL REVIEW B, 1997, 56 (18) :11423-11426

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