Evolution of the spin resonance in CeCoIn$_5$ under magnetic field

J. Panarin; S. Raymond; G. Lapertot; J. Flouquet

doi:10.1143/JPSJ.78.113706

Evolution of the spin resonance in CeCoIn$_5$ under magnetic field

Strongly Correlated Electrons 2009-11-13 v1 Superconductivity

Authors: J. Panarin , S. Raymond , G. Lapertot , J. Flouquet

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Abstract

The evolution of the magnetic excitation spectrum of the unconventional superconductor CeCoIn $_{5}$ 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 states 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.

Keywords

CeCoIn5 spin resonance magnetic field inelastic neutron scattering unconventional superconductor magnetic excitation spectrum

Cite

@article{arxiv.0908.2688,
  title  = {Evolution of the spin resonance in CeCoIn$_5$ under magnetic field},
  author = {J. Panarin and S. Raymond and G. Lapertot and J. Flouquet},
  journal= {arXiv preprint arXiv:0908.2688},
  year   = {2009}
}

Comments

4 pages, 4 figures, submitted to J. Phys. Soc. Japan

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