HE-3 MOBILITY AND LOCALIZATION IN THIN HE-4 FILMS

被引：20
|
作者：
SPRAGUE, DT [1 ]
ALIKACEM, N [1 ]
HALLOCK, RB [1 ]
机构：
[1] UNIV MASSACHUSETTS,DEPT PHYS & ASTRON,LOW TEMP PHYS LAB,AMHERST,MA 01003
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.74.4479
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report measurements of spin-diffusion coefficients for 0.1 monolayerof3He adsorbed on thin4He filmsas a function of temperature and4He coverage. For4He coverages below a critical coverage Dc the 3He are immobile. The 3He quasiparticles in the film experience a mobility edge as the 4He coverage is increased beyond Dc. This is accompanied by a vanishing of local moments as evidenced by the disappearance of a Curie-like component of the magnetization for coverages D>Dc. A peak in the transverse relaxation T2 occurs near Dc. © 1995 The American Physical Society.
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收藏
页码：4479 / 4482
页数：4
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