Theory for Coupled SDW and Superconducting Order in FFLO State of CeCoIn5

被引：25
|
作者：
Miyake, Kazurnasa [1 ,2 ]
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Dept Mat Engn Sci, Div Mat Phys, Osaka 5608531, Japan
[2] SPSMS, INAC, Commissariat Energie Atom, F-38054 Grenoble, France
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2008年 / 77卷 / 12期
关键词：
FFLO phase in CeCoIn5; incommensurate spin-density-wave order;
D O I：
10.1143/JPSJ.77.123703
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The mechanism of incommensurate (IQ spin-density-wave (SDW) order observed in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase of CeCoIn5 is discussed on the basis of new mode-coupling scheme among IC-SDW order, two superconducting orders of FFLO with B-1g (d(x2-y2)) symmetry and pi-pairing of odd-parity. Unlike the mode-coupling schemes proposed quite recently by Kenzelmann et al., that proposed in the present Letter can offer a simple explanation for why the IC-SDW order is observed only in FFLO phase and the IC wave vector is rather robust against the magnetic field.
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页数：3
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