# Coupled SDW and Superconducting Order in FFLO State of CeCoIn$\_5$

Source: [Coupled SDW and Superconducting Order in FFLO State of CeCoIn$\_5$](<https://www.sota2.com/research/paper/68fa23f52c2a37601939d755>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:52:41.004Z

Authors: K. Miyake

Published: 2008-09-12T12:15:19.000Z

## Abstract

The mechanism of incommensurate (IC) spin-density-wave (SDW) order observed in the Flude-Ferrell-Larkin-Ovchinnikov (FFLO) phase of CeCoIn$\_5$ is discussed on the basis of new mode-coupling scheme among IC-SDW order, two superconducting orders of FFLO with B$\_{1{\\rm g}}$ ($d\_{x^{2}-y^{2}}$) symmetry and $\\pi$-pairing of odd-parity. Unlike the mode-coupling schemes proposed by Kenzelmann et al, Sciencexpress, 21 August (2008), 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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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/0809.2192>)

[PDF](<https://arxiv.org/pdf/0809.2192.pdf>)