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 › peer-review

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 2005

Keywords

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

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.74.2675

Fingerprint Dive into the research topics of 'Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe<sub>2</sub>: A <sup>73</sup>Ge-NQR study under pressure'. Together they form a unique fingerprint.

Cite this

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, 10.2005, p. 2675-2678.

Research output: Contribution to journal › Article › peer-review

@article{6d5ca7ea454249719c4ac3bc56f9124d,

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

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 Pc ∼ 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.",

keywords = "First-order phase transition, Itinerant ferromagnetism, NQR under pressure, UGe, Unconventional superconductivity",

author = "A. Harada and S. Kawasaki and H. Kotegawa and Y. Kitaoka and Y. Haga and E. Yamamoto and Y. Onuki and Itoh, {K. M.} and Haller, {E. E.} and H. Harima",

year = "2005",

month = oct,

doi = "10.1143/JPSJ.74.2675",

language = "English",

volume = "74",

pages = "2675--2678",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "10",

}

TY - JOUR

T1 - Cooperative phenomenon of ferromagnetism and unconventional superconductivity in UGe2

T2 - A 73Ge-NQR study under pressure

AU - Harada, A.

AU - Kawasaki, S.

AU - Kotegawa, H.

AU - Kitaoka, Y.

AU - Haga, Y.

AU - Yamamoto, E.

AU - Onuki, Y.

AU - Itoh, K. M.

AU - Haller, E. E.

AU - Harima, H.

PY - 2005/10

Y1 - 2005/10

N2 - 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 Pc ∼ 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.

AB - 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 Pc ∼ 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.

KW - First-order phase transition

KW - Itinerant ferromagnetism

KW - NQR under pressure

KW - UGe

KW - Unconventional superconductivity

UR - http://www.scopus.com/inward/record.url?scp=27144504741&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27144504741&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.74.2675

DO - 10.1143/JPSJ.74.2675

M3 - Article

AN - SCOPUS:27144504741

VL - 74

SP - 2675

EP - 2678

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 10

ER -