Ultrasonic study on RuSr2GdCu2O8

被引：0

作者：

Li, H. L. ^{[2
]}

Zhang, H. ^{[1
,3
]}

Wang, W. ^{[1
,3
]}

Xiang, X. Q. ^{[1
,3
]}

Zhang, Y. Q. ^{[1
,3
]}

Li, X. G. ^{[1
,3
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

[2] Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China

[3] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2009年 / 246卷 / 01期

关键词：

FERROMAGNETIC SUPERCONDUCTOR RUSR2GDCU2O8; DC MAGNETIZATION; GD; COEXISTENCE; TEMPERATURE; EU;

D O I：

10.1002/pssb.200844178

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The physical properties of RuSr2GdCu2O8 have been investigated by ultrasonic measurements. The huge stiffening of the velocity and the sharp elastic energy loss peak with the asymmetric shape near 220 K both indicate a phase transformation in the sample, which is induced by the disorder to order transformation of the orientation of RuO6 octahedra. The softening of the velocity and the elastic energy loss peak near 132 K may give further evidence to the strong spin-phonon interaction in the compound, and suggest a complex interplay of spin and lattice degrees of freedom in RuSr2GdCu2O8. A velocity jump and a decrease of the elastic energy loss are observed around the onset of the superconducting transition temperature T-C,T-onset similar to 50 K. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：45 / 49

页数：5

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