Evolution of the Spin Resonance in CeCoIn5 under Magnetic Field

被引：26
|
作者：
Panarin, Justin [1 ]
Raymond, Stephane [1 ]
Lapertot, Gerard [1 ]
Flouquet, Jacques [1 ]
机构：
[1] CEA Grenoble, INAC SPSMS, F-38054 Grenoble, France
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2009年 / 78卷 / 11期
关键词：
unconventional superconductivity; heavy fermion; inelastic neutron scattering; SUPERCONDUCTING STATE; NEUTRON-SCATTERING; ORDER;
D O I：
10.1143/JPSJ.78.113706
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The evolution of the magnetic excitation spectrum of the unconventional superconductor CeCoIn5 was studied by inelastic neutron scattering as a function of magnetic field applied in the [1, -1, 0] direction. The spin resonance characteristic of the superconducting state was observed up to about H-c2/2: it is still centered at (1/2, 1/2, 1/2) when the magnetic field increases while its characteristic energy decreases and its lineshape substantially broadens.
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页数：4
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