Low temperature elastic constants of polycrystalline MgB2

被引：8
|
作者：
Harms, U
Serquis, A
Schwarz, RB
Nesterenko, VF
机构：
[1] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87544 USA
[2] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA
来源：
JOURNAL OF SUPERCONDUCTIVITY | 2003年 / 16卷 / 06期
关键词：
superconductivity; elastic constants; internal friction; MgB2; ultrasonic; SUPERCONDUCTIVITY; DEFECTS;
D O I：
10.1023/A:1026274803563
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have used a resonant ultrasound spectroscopy technique to measure the bulk and shear modulus of fully dense, polycrystalline MgB2 between 4 and 300 K. Both moduli show good agreement with published first principle calculations. The internal friction shows a broad maximum around 40 K.
引用
收藏
页码：941 / 944
页数：4
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