Electron-spin-resonance instability in two-dimensional atomic hydrogen gas -: art. no. 153002

被引：18

作者：

Vasilyev, S ^{[1
]}

Järvinen, J

Safonov, AI

Kharitonov, AA

Lukashevich, II

Jaakkola, S

机构：

[1] Univ Turku, Dept Phys, Wihuri Phys Lab, Turku 20014, Finland

[2] IV Kurchatov Atom Energy Inst, RRC, ISSSP, Moscow 123182, Russia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 15期

基金：

芬兰科学院; 俄罗斯基础研究基金会;

关键词：

D O I：

10.1103/PhysRevLett.89.153002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study by electron-spin-resonance spin-polarized atomic hydrogen adsorbed on the surface of superfluid helium at temperatures T-S from 50 to 110 mK. The average dipolar field in this 2D system shifts the electron-spin-resonance peak of the adsorbed atoms relative to that of bulk atoms. The shift is directly proportional to surface density. The role of longitudinal magnetization relaxation is played by particle exchange between the 2D and the 3D phases, which diminishes exponentially with decreasing T-S. Therefore at T(S)less than or similar to80 mK an excitation field of 0.1 mG disturbs the equilibrium surface density and leads to a magnetization instability observed as sawtooth shaped resonance lines.

引用

页码：153002/1 / 153002/4

页数：4

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