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1. Anisotropic magnetic fluctuations in the ferromagnetic superconductor UCoGe studied by angle-resolved ^{59}Co NMR

Author

Ihara, Y., Hattori, T., Ishida, K., Nakai, Y., Osaki, E., Deguchi, K., Sato, N. K., and Satoh, I.

Subjects
Superconductivity (cond-mat.supr-con), Condensed Matter - Strongly Correlated Electrons, Strongly Correlated Electrons (cond-mat.str-el), Condensed Matter::Superconductivity, Condensed Matter - Superconductivity, FOS: Physical sciences, Condensed Matter::Strongly Correlated Electrons
Abstract

We have carried out direction-dependent ^{59}Co NMR experiments on a single crystal sample of the ferromagnetic superconductor UCoGe in order to study the magnetic properties in the normal state. The Knight shift and nuclear spin-lattice relaxation rate measurements provide microscopic evidence that both static and dynamic susceptibilities are ferromagnetic with strong Ising anisotropy. We discuss that superconductivity induced by these magnetic fluctuations prefers spin-triplet pairing state., 4 pages, 4 figures

Published
2010

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