Transport properties of Sr14-xCaxCu24O41 with doped two-leg Cu-O ladders

被引：1

作者：

Motoyama, N

Eisaki, H

Osafune, T

Yoshida, A

Yotsui, K

Uchida, S

机构：

[1] Department of Superconductivity, University of Tokyo, Tokyo 113, Bunkyo-ku

来源：

PHYSICA C | 1997年 / 282卷

关键词：

D O I：

10.1016/S0921-4534(97)00675-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have performed electrical resistivity and thermopower measurements on the single crystals of Sr14-xCaxCu24O41. From these measurements, we confirmed that two-leg antiferromagnetic spin-ladders in this material are progressively doped with hole carriers upon Ca substitution. In Sr2Ca12Cu24O41, the resistivity along ladders shows T-linear temperature dependence above 80 K, and the resistivity perpendicular to ladders shows insulating behavior below 300 K. This anomalous anisotropy in resistivity is indicative of one-dimensional electronic state on this system.

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页码：1119 / 1120

页数：2

相关论文

共 8 条

[1] Hole doping of the CuO2 chains in (La,Sr,Ca)(14)Cu24O41 [J].

Carter, SA ;

Batlogg, B ;

Cava, RJ ;

Krajewski, JJ ;

Peck, WF ;

Rice, TM .

PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1378-1381

[2] Metal-insulator transition and spin gap in the spin-1/2 ladder system Sr(14-x)A(x)Cu(24)O(41) (A=Ba and Ca) [J].

Kato, M ;

Shiota, K ;

Koike, Y .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1996, 258 (3-4) :284-292

[3] Magnetic excitations from the singlet ground state in the S=1/2 quasi-one-dimensional system Sr14-xYxCu24O41 [J].

Matsuda, M ;

Katsumata, K ;

Eisaki, H ;

Motoyama, N ;

Uchida, S ;

Shapiro, SM ;

Shirane, G .

PHYSICAL REVIEW B, 1996, 54 (17) :12199-12206

[4] THE INCOMMENSURATE STRUCTURE OF (SR14-XCAX)CU24O41 (0 LESS-THAN X APPROXIMATELY 8) A SUPERCONDUCTOR BY-PRODUCT [J].

MCCARRON, EM ;

SUBRAMANIAN, MA ;

CALABRESE, JC ;

HARLOW, RL .

MATERIALS RESEARCH BULLETIN, 1988, 23 (09) :1355-1365

[5]

MIZUNO Y, UNPUB J PHYS SOC JPN

[6] Effect of Ca substitution and pressure on the transport and magnetic properties of Sr14Cu24O41 with doped two-leg Cu-O ladders [J].

Motoyama, N ;

Osafune, T ;

Kakeshita, T ;

Eisaki, H ;

Uchida, S .

PHYSICAL REVIEW B, 1997, 55 (06) :R3386-R3389

[7] SUPERCONDUCTIVITY, SPIN GAPS AND LUTTINGER LIQUIDS IN A CLASS OF CUPRATES [J].

RICE, TM ;

GOPALAN, S ;

SIGRIST, M .

EUROPHYSICS LETTERS, 1993, 23 (06) :445-449

[8] Superconductivity in the ladder material Sr0.4Ca13.6Cu24O41.84 [J].

Uehara, M ;

Nagata, T ;

Akimitsu, J ;

Takahashi, H ;

Mori, N ;

Kinoshita, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (09) :2764-2767