Low-temperature normal-state resistivity of high-T-c cuprates

被引：12

作者：

Ando, Y

Boebinger, GS

Passner, A

Wang, NL

Geibel, C

Steglich, F

Kimura, T

Okuya, M

Shimoyama, J

Kishio, K

Tamasaku, K

Ichikawa, N

Uchida, S

机构：

[1] AT&T BELL LABS,LUCENT TECHNOL,MURRAY HILL,NJ 07974

[2] TH DARMSTADT,INST FESTKORPERPHYS,D-64289 DARMSTADT,GERMANY

[3] UNIV TOKYO,DEPT APPL CHEM,TOKYO 113,JAPAN

[4] UNIV TOKYO,SUPERCONDUCT RES COURSE,TOKYO 113,JAPAN

来源：

PHYSICA C | 1997年 / 282卷

关键词：

D O I：

10.1016/S0921-4534(97)00226-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The results of low-temperature normal-state resistivity measurements of La2-xSrxCuO4 (LSCO) and Bi2Sr2-xLaxCuOy (Bi-2201) using 61-T pulsed magnetic fields are summarized. Measurements of LSCO with various Sr doping reveal (1) an insulator-to-metal crossover in the normal state that takes place near optimum doping and (2) unusual log(1/T) divergence of both rho(ab) and rho(c) of insulating underdoped samples. In particularly clean Bi-2201 crystals, metallic in-plane resistivity and insulating c-axis resistivity are found to coexist down to the lowest experimental temperature. Recent measurements of the low-temperature normal-state Hall effect on Bi-2201 find an essentially temperature-independent Hall coefficient below 20 K, which suggests that the unusual insulating behavior does not come from conventional disorder-enhanced electron interactions.

引用

页码：240 / 243

页数：4

共 12 条

[1]

Altshuler B. L., 1985, Electron-electron interactions in disordered systems, P1

[2] Coherence and localization in 2D Luttinger liquids [J].