115In-NQR evidence for unconventional superconductivity in CeIn3 under pressure

S. Kawasaki; T. Mito; Y. Kawasaki; G. Q. Zheng; Y. Kitaoka; H. Shishido; S. Araki; R. Settai; Y. Onuki

¹¹⁵In-NQR evidence for unconventional superconductivity in CeIn₃ under pressure

S. Kawasaki, T. Mito, Y. Kawasaki, G. Q. Zheng, Y. Kitaoka, H. Shishido, S. Araki, R. Settai, Y. Onuki

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

Abstract

We report evidence for unconventional superconductivity in CeIn₃ at a pressure P=2.65 GPa above the critical pressure (P_c∼2.5 GPa) revealed by measurements of the nuclear-spin-lattice-relaxation time (T₁) and ac susceptibility (ac-x). Both measurements of T₁ and ac-x have pointed to a superconducting transition at T_c=95 mK, which is much lower than the onset temperature T_onset=0.15 K at zero resistance. The temperature dependence of 1/T₁ shows no coherence peak just below T_c, indicative of an unconventional nature for the superconductivity induced in CeIn₃.

Original language	English
Article number	054521
Pages (from-to)	545211-545214
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	5
Publication status	Published - Aug 1 2002
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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¹¹⁵In-NQR evidence for unconventional superconductivity in CeIn₃ under pressure. / Kawasaki, S.; Mito, T.; Kawasaki, Y.; Zheng, G. Q.; Kitaoka, Y.; Shishido, H.; Araki, S.; Settai, R.; Onuki, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 5, 054521, 01.08.2002, p. 545211-545214.

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

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abstract = "We report evidence for unconventional superconductivity in CeIn3 at a pressure P=2.65 GPa above the critical pressure (Pc∼2.5 GPa) revealed by measurements of the nuclear-spin-lattice-relaxation time (T1) and ac susceptibility (ac-x). Both measurements of T1 and ac-x have pointed to a superconducting transition at Tc=95 mK, which is much lower than the onset temperature Tonset=0.15 K at zero resistance. The temperature dependence of 1/T1 shows no coherence peak just below Tc, indicative of an unconventional nature for the superconductivity induced in CeIn3.",

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AU - Shishido, H.

AU - Araki, S.

AU - Settai, R.

AU - Onuki, Y.

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