HEAT CAPACITY OF HELIUM CONFINED TO 8-MU-M CYLINDERS NEAR THE LAMBDA-POINT

被引：29

作者：

COLEMAN, M

LIPA, JA

机构：

[1] Physics Department, Stanford University, Stanford

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.74.286

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of heat capacity measurements on helium confined in 8-μm diameter cylinders in the temperature region spanning the λ point. The data allow improved tests of the emerging theory of finite size phenomena and crossover to lower-dimensional states. In contrast to earlier work with much smaller holes, we find good agreement with scaling using exponents derived by renormalization methods. We also find reasonable agreement with more detailed calculations of crossover behavior based on explicit inclusion of boundary conditions. © 1995 The American Physical Society.

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页码：286 / 289

页数：4

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