Low-temperature magnetostriction of Sr3Ru2O7

被引：7
|
作者：
Gegenwart, P [1 ]
Weickert, F
Perry, RS
Maeno, Y
机构：
[1] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany
[2] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland
[3] Kyoto Univ, Int Innovat Ctr, Kyoto 6068501, Japan
[4] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2006年 / 378-80卷
关键词：
quantum criticality; metamagnetism; Sr3Ru2O7;
D O I：
10.1016/j.physb.2006.01.047
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Itinerant-electron metamagnetism in the bilayer ruthenate Sr3Ru2O7 is studied by c-axis magnetostriction measurements on a high-quality single crystal in magnetic fields up to 18 T and at temperatures down to 20 mK. The positive linear magnetostriction coefficient suggests an initial decrease of the magnetization under c-axis uniaxial pressure. A highly enhanced magnetic Gruneisen parameter Gamma(H) = 106 indicates a strong magnetoelastic coupling. The system is particularly sensitive to c-axis strain. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：117 / 118
页数：2
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