Scaling of the conductivity of Si:B: Anomalous crossover in a magnetic field

被引：7

作者：

Bogdanovich, S

Dai, PH

Sarachik, MP

Dobrosavljevic, V

Kotliar, G

机构：

[1] FLORIDA STATE UNIV,NATL HIGH MAGNET FIELD LAB,TALLAHASSEE,FL 32306

[2] RUTGERS STATE UNIV,SERIN PHYS LAB,PISCATAWAY,NJ 08854

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.55.4215

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The zero-temperature conductivity of Si:B with dopant concentrations near the metal-insulator transition exhibits scaling as a function of magnetic field with an anomalously large crossover exponent. The large value of delta is associated with unusual behavior of the magnetoconductance, which vanishes as a power law approaching the transition. This demonstrates that Si:B, which has an anomalous critical conductivity exponent in zero field, also exhibits unusual behavior in response to a magnetic field.

引用

页码：4215 / 4218

页数：4

共 29 条

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