Insulator-to-metal crossover in the normal state of La2-xSrxCuO4 near optimum doping

被引：456

作者：

Boebinger, GS

Ando, Y

Passner, A

Kimura, T

Okuya, M

Shimoyama, J

Kishio, K

Tamasaku, K

Ichikawa, N

Uchida, S

机构：

[1] UNIV TOKYO,DEPT APPL CHEM,BUNKYO KU,TOKYO 113,JAPAN

[2] UNIV TOKYO,SUPERCONDUCT RES COURSE,BUNKYO KU,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 27期

关键词：

D O I：

10.1103/PhysRevLett.77.5417

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A 61-T pulsed magnetic field suppresses superconductivity in La2-xSrxCuO4 single crystals and reveals an insulator-to-metal (IM) crossover for both in-plane resistivity rho(ab) and c-axis resistivity rho(c) at a Sr concentration near optimum doping (x similar or equal to 0.16). The IM transition is unusual in that all underdoped samples (x < 0.16) show low-temperature insulating behavior, even in samples with linear-T rho(ab) above T-c and apparently large k(F)l.

引用

页码：5417 / 5420

页数：4

共 34 条

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