Charge-transfer and the location of superconducting holes in La2-beta Sr beta CuO4

被引：11

作者：

Blackstead, HA ^{[1
]}

Dow, JD ^{[1
]}

机构：

[1] ARIZONA STATE UNIV,DEPT PHYS & ASTRON,TEMPE,AZ 85287

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1995年 / 56卷 / 12期

关键词：

superconductors; neutron scattering; superconductivity; La2-beta Sr beta CuO4; charge-transfer;

D O I：

10.1016/0022-3697(95)00132-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As beta increases in La2(-beta)Sr(beta)CuO(4), holes transfer from the cuprate-planes to the La-O layers-the opposite of what the charge-transfer hypothesis predicts We interpret this analyzed charge-transfer as indicating that the superconductivity originates in the vicinity of La-O layers, not in the cuprate-planes-contrary to previous interpretations of measurements which place the origin of superconductivity in the cuprate-planes.

引用

页码：1697 / 1698

页数：2

共 7 条

[1]

BLACKSTEAD HA, 1994, JETP LETT+, V59, P283

[2] A DETERMINATION OF THE OXIDATION-STATES AND INTERNAL-STRESSES IN BA2YCU3OX,X=6-7 USING BOND VALENCES [J].

BROWN, ID .

JOURNAL OF SOLID STATE CHEMISTRY, 1989, 82 (01) :122-131

[3] STRUCTURAL ANOMALIES, OXYGEN ORDERING AND SUPERCONDUCTIVITY IN OXYGEN DEFICIENT BA2YCU3OX [J].

CAVA, RJ ;

HEWAT, AW ;

HEWAT, EA ;

BATLOGG, B ;

MAREZIO, M ;

RABE, KM ;

KRAJEWSKI, JJ ;

PECK, WF ;

RUPP, LW .

PHYSICA C, 1990, 165 (5-6) :419-433

[4]

Ginsberg D. M., 1989, Physical properties of high temperature superconductors I, P1

[5] EVIDENCE FOR HOLES ON OXYGEN SITES IN THE HIGH-TC SUPERCONDUCTORS LA2-XSRXCUO4 AND YBA2CU3O7-Y [J].

NUCKER, N ;

FINK, J ;

FUGGLE, JC ;

DURHAM, PJ ;

TEMMERMAN, WM .

PHYSICAL REVIEW B, 1988, 37 (10) :5158-5163

[6] PHYSICS OF COMPLEX METALS - TEMPERATURE-DEPENDENT RESISTIVITIES IN IONIC SUPERCONDUCTORS AND STABLE QUASI-CRYSTALS [J].

PHILLIPS, JC .

PHYSICAL REVIEW B, 1992, 46 (13) :8542-8558

[7] STRUCTURAL AND SUPERCONDUCTING PROPERTIES OF LA2-XSRXCUO4 AS A FUNCTION OF SR CONTENT [J].

RADAELLI, PG ;

HINKS, DG ;

MITCHELL, AW ;

HUNTER, BA ;

WAGNER, JL ;

DABROWSKI, B ;

VANDERVOORT, KG ;

VISWANATHAN, HK ;

JORGENSEN, JD .

PHYSICAL REVIEW B, 1994, 49 (06) :4163-4175

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