Observation of mass transport through solid 4He

被引：51

作者：

Ray, M. W. ^{[1
]}

Hallock, R. B. ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Phys, Low Temp Phys Lab, Amherst, MA 01003 USA

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 22期

关键词：

melting; phase diagrams; solid helium; superfluidity; NONCLASSICAL ROTATIONAL INERTIA; BOSE-EINSTEIN CONDENSATION; QUANTUM CRYSTALS; LIQUID-HELIUM; VYCOR GLASS; SUPERFLUIDITY; SUPERSOLIDITY; PRESSURE; SEARCH; PHASE;

D O I：

10.1103/PhysRevB.79.224302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By use of an experimental design that provides for superfluid helium in contact with bulk hcp He-4 off the melting curve, we have observed the dc transport of mass through a cell filled with solid He-4 in the hcp region of the phase diagram. Flow, which shows characteristics of a superflow, is seen to be independent of the method used to grow the solid but depends on pressure and temperature. The temperature dependence suggests the possibility of hysteresis.

引用

页数：15

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