Hole doping of the CuO2 chains in (La,Sr,Ca)(14)Cu24O41

被引：175

作者：

Carter, SA ^{[1
]}

Batlogg, B ^{[1
]}

Cava, RJ ^{[1
]}

Krajewski, JJ ^{[1
]}

Peck, WF ^{[1
]}

Rice, TM ^{[1
]}

机构：

[1] ETH ZURICH,CH-8093 ZURICH,SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.77.1378

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Substantial hole doping has been achieved in (La,Sr,Ca)(14)Cu24O41 compounds with CuO2 chain and Cu2O3 ladder building blocks. Holes enter the structural units with larger O/Cu ratios which are the CuO2 chains. The ladders remain undoped and magnetically inert due to a large spin gap. The moments in the undoped chains interact weakly, and every hole added creates a nonmagnetic CuO2 unit and decreases the resistivity. At the maximum hole concentration (similar to 0.6/CuO2) the residual moments form a singlet ground state possibly due to dimerization with an excitation gap of similar to 140 K to the triplet state.

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页码：1378 / 1381

页数：4

相关论文

共 28 条

[1] OBSERVATION OF A SPIN GAP IN SRCU2O3 COMPRISING SPIN-1/2 QUASI-1D 2-LEG LADDERS [J].

AZUMA, M ;

HIROI, Z ;

TAKANO, M ;

ISHIDA, K ;

KITAOKA, Y .

PHYSICAL REVIEW LETTERS, 1994, 73 (25) :3463-3466

[2] Electronic phase separation and charge ordering in (Sr,La)(2)MnO4: Indication of triplet bipolarons [J].

Bao, W ;

Chen, CH ;

Carter, SA ;

Cheong, SW .

SOLID STATE COMMUNICATIONS, 1996, 98 (01) :55-59

[3] EXCITATION SPECTRUM OF HEISENBERG SPIN LADDERS [J].

BARNES, T ;

DAGOTTO, E ;

RIERA, J ;

SWANSON, ES .

PHYSICAL REVIEW B, 1993, 47 (06) :3196-3203

[4] LINEAR MAGNETIC CHAINS WITH ANISOTROPIC COUPLING [J].

BONNER, JC ;

FISHER, ME .

PHYSICAL REVIEW, 1964, 135 (3A) :A640-+

[5]

CARTER S, UNPUB

[6] Spin and charge dynamics in 2D metal-insulator transition oxides: (Pr,Sr)(2)NiO4 and Sr-2(Ru,Ir)O-4 [J].

Carter, S. A. ;

Cheong, S. -W. ;

Batlogg, B. ;

Cava, R. J. ;

Chen, C. H. ;

Krajewski, J. J. ;

Peck, W. F., Jr. ;

Rupp, L. W., Jr. .

PHYSICA B-CONDENSED MATTER, 1995, 206 (1-4) :856-858

[7] CHARGE-ORDERED STATES IN (LA,SR)2NIO4 FOR HOLE CONCENTRATIONS N(H)=1/3 AND N(H)=1/2 [J].

CHEONG, SW ;

HWANG, HY ;

CHEN, CH ;

BATLOGG, B ;

RUPP, LW ;

CARTER, SA .

PHYSICAL REVIEW B, 1994, 49 (10) :7088-7091

[8] SUPERCONDUCTIVITY IN LADDERS AND COUPLED PLANES [J].

DAGOTTO, E ;

RIERA, J ;

SCALAPINO, D .

PHYSICAL REVIEW B, 1992, 45 (10) :5744-5745

[9] Surprises on the way from one- to two-dimensional quantum magnets: The ladder materials [J].

Dagotto, E ;

Rice, TM .

SCIENCE, 1996, 271 (5249) :618-623

[10] OBSERVATION OF THE SPIN-PEIERLS TRANSITION IN LINEAR CU2+ (SPIN-1/2) CHAINS IN AN INORGANIC COMPOUND CUGEO3 [J].

HASE, M ;

TERASAKI, I ;

UCHINOKURA, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (23) :3651-3654