EXPONENTIAL, RATHER THAN POWER-LAW, TEMPERATURE-DEPENDENCE OF THE DAMPING OF A VIBRATING-WIRE RESONATOR IN HE-3-A AT LOW-TEMPERATURES

被引：8

作者：

FISHER, SN

GUENAULT, AM

KENNEDY, CJ

PICKETT, GR

机构：

[1] School of Physics and Materials, Lancaster University

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 27期

关键词：

D O I：

10.1103/PhysRevLett.67.3788

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the damping of a vibrating-wire resonator in liquid He-3-A down to temperatures of T(c)/T of 7 at zero bar pressure in a field of 500 mT. A simultaneous measurement of the damping in the B phase is also recorded. The response in the A phase is found to follow an exponential temperature dependence and not a power law as might be naively expected. This effect is a consequence of the exclusion of a large fraction of the bulk low-energy excitations from a surface by the bending of the texture.

引用

页码：3788 / 3791

页数：4

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