Dynamical sticking of a solid 4He film with superfluid overlayer

被引：15

作者：

Hosomi, Nariko ^{[1
]}

Taniguchi, Junko ^{[1
]}

Suzuki, Masaru ^{[1
]}

Minoguchi, Tomoki ^{[2
]}

机构：

[1] Univ Electrocommun, Dept Appl Phys & Chem, Tokyo 1828585, Japan

[2] Univ Tokyo, Inst Phys, Meguro Ku, Tokyo 1538902, Japan

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 17期

关键词：

edge dislocations; graphite; solid helium; superfluidity; HEAT-CAPACITY; MONOLAYERS; FRICTION;

D O I：

10.1103/PhysRevB.79.172503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We observed a phenomenon in a quartz-crystal microbalance experiment for solid He-4 films with liquid overlayer on graphite. The solid atomic layers underneath the superfluid layer stop slipping from the oscillating substrate when the superfluid density grows up to a certain magnitude. This phenomenon can be explained by a mechanism in which the mass transport caused by the motion of edge dislocations in solid atomic layers is canceled by counterflow of the superfluid overlayer.

引用

页数：4

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