High-Resolution Thermal Expansion of MgB2

被引：0

作者：

R. Lortz

C. Meingast

D. Ernst

B. Renker

D. D. Lawrie

J. P. Franck

机构：

[1] Universität Karlsruhe,Fakultät für Physik

[2] University of Alberta,Department of Physics

来源：

Journal of Low Temperature Physics | 2003年 / 131卷

关键词：

Thermal Expansion; Magnetic Material; Pressure Data; Dilatometry; Structural Instability;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The thermal expansion of polycrystalline MgB2 from 5–300 K is studied using high-resolution capacitance dilatometry. The thermal expansivity exhibits a small jump of −5.8×10−8 K−1 at Tc (in accord with expectations from the Ehrenfest relationship and published specific heat and pressure data) and a negative peak-like feature close to 5 K. No indications of any structural instabilities are observed.

引用

页码：1101 / 1104

页数：3

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