SATURATION OF PHASE COHERENCE LENGTH IN GAAS/ALGAAS ON-FACET QUANTUM WIRES

被引：17

作者：

FUKAI, YK

YAMADA, S

NAKANO, H

机构：

[1] NTT Basic Research Laboratories, Musashinoshi, Tokyo 180

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 21期

关键词：

D O I：

10.1063/1.102990

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Phase coherence length Lφ of on-facet quantum wires is determined at temperatures down to 50 mK by three methods: magnetoresistance, conductance fluctuation amplitude, and the conductance fluctuation correlation field. It is found that Lφ saturates below about 0.4 K. This saturation is identified as due to spin-orbit interaction, which has no temperature dependence. This result is supported by positive magnetoresistance under a weak magnetic field.

引用

页码：2123 / 2125

页数：3

共 19 条

[1]

ALTSHULER BL, 1981, JETP LETT+, V33, P499

[2] ELECTRON-DENSITY OF STATES AND ENERGY RELAXATION-TIME IN MAGNETIC-FIELD [J].