Microwave absorption in Wigner crystals at high magnetic fields

被引：0

作者：

Shrivastava, KN ^{[1
]}

机构：

[1] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India

来源：

NATIONAL ACADEMY SCIENCE LETTERS-INDIA | 2005年 / 28卷 / 5-6期

关键词：

Wigner solid; electron gas; quantum Hall effect; microwave;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A two-dimensional electron gas is formed in between layers of GaAs/AlGaAs. The microwaves of frequency of about similar to 120 MHz are absorbed at a magnetic field of 33 Tesla. From this absorption, we deduce the phase diagram of a Wigner crystal. Several different phases are found. Since the phases occur at well defined tilling factors, we are able to fix the spin orientation in various phases. At high magnetic fields, the electrons become free and there is no interaction other than the dot product of magnetic moment and the magnetic field.

引用

页码：197 / 201

页数：5

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