Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe2: A 73Ge-NQR study under pressure

A. Harada; S. Kawasaki; H. Kotegawa; Y. Kitaoka; Y. Haga; E. Yamamoto; Y. Onuki; K. M. Itoh; E. E. Haller; H. Harima

doi:10.1143/JPSJ.74.2675

Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe₂: A ⁷³Ge-NQR study under pressure

A. Harada, S. Kawasaki, H. Kotegawa, Y. Kitaoka, Y. Haga, E. Yamamoto, Y. Onuki, K. M. Itoh, E. E. Haller, H. Harima

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

We report on a cooperative phenomenon of ferromagnetism and unconventional superconductivity (SC) in UGe₂ through the measurements of ⁷³Ge nuclear-quadrupole-resonance (NQR) under pressure (P). The NQR spectra evidenced phase separation into ferromagnetic and paramagnetic phases in the vicinity of P_c ∼ 1.5 GPa, pointing to a first-order transition. The measurements of nuclear-spin-lattice-relaxation-rate 1/T ₁ revealed that SC emerges under the background of ferromagnetism, but not of the paramagnetic phase.

Original language	English
Pages (from-to)	2675-2678
Number of pages	4
Journal	journal of the physical society of japan
Volume	74
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.74.2675
Publication status	Published - Oct 1 2005
Externally published	Yes

Keywords

First-order phase transition
Itinerant ferromagnetism
NQR under pressure
UGe
Unconventional superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

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Harada, A., Kawasaki, S., Kotegawa, H., Kitaoka, Y., Haga, Y., Yamamoto, E., Onuki, Y., Itoh, K. M., Haller, E. E., & Harima, H. (2005). Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe₂: A ⁷³Ge-NQR study under pressure. journal of the physical society of japan, 74(10), 2675-2678. https://doi.org/10.1143/JPSJ.74.2675

Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe₂ : A ⁷³Ge-NQR study under pressure. / Harada, A.; Kawasaki, S.; Kotegawa, H.; Kitaoka, Y.; Haga, Y.; Yamamoto, E.; Onuki, Y.; Itoh, K. M.; Haller, E. E.; Harima, H.

In: journal of the physical society of japan, Vol. 74, No. 10, 01.10.2005, p. 2675-2678.

Research output: Contribution to journal › Article

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AU - Haga, Y.

AU - Yamamoto, E.

AU - Onuki, Y.

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