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
收藏
页码：1101 / 1104
页数：3
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