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
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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 -