Gapless Magnetic and Quasiparticle Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn5: A Study of 115In NQR under Pressure

S. Kawasaki; T. Mito; Y. Kawasaki; G. Q. Zheng; Y. Kitaoka; D. Aoki; Y. Haga; Y. Onuki

Gapless Magnetic and Quasiparticle Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn₅: A Study of ¹¹⁵In NQR under Pressure

S. Kawasaki, T. Mito, Y. Kawasaki, G. Q. Zheng, Y. Kitaoka, D. Aoki, Y. Haga, Y. Onuki

IMR - Materials Processing and Characterization Division

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95 Citations (Scopus)

Abstract

The systematic measurements of ac susceptibility, nuclear-quadrupole-resonance spectrum and nuclear-spin-lattice-relaxation time (T₁) on the pressure (P)-induced heavy-fermion superconductor CeRhIn₅ were reported. The temperature (T) dependence of 1/T ₁ at P = 1.6 GPa has revealed that antiferromagnetism (AFM) and superconductivity (SC) coexist microscopically, exhibiting the respective transition at T_N=2.8 K and T_c^MF = 0.9 K. It was demonstrated that SC does not yield and trace of gap opening in low-lying excitations below T_c^onset = 2 K.

Original language	English
Pages (from-to)	1370011-1370014
Number of pages	4
Journal	Physical Review Letters
Volume	91
Issue number	13
Publication status	Published - 2003 Sept 26

Cite this

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title = "Gapless Magnetic and Quasiparticle Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn5: A Study of 115In NQR under Pressure",

abstract = "The systematic measurements of ac susceptibility, nuclear-quadrupole-resonance spectrum and nuclear-spin-lattice-relaxation time (T1) on the pressure (P)-induced heavy-fermion superconductor CeRhIn5 were reported. The temperature (T) dependence of 1/T 1 at P = 1.6 GPa has revealed that antiferromagnetism (AFM) and superconductivity (SC) coexist microscopically, exhibiting the respective transition at TN=2.8 K and TcMF = 0.9 K. It was demonstrated that SC does not yield and trace of gap opening in low-lying excitations below Tconset = 2 K.",

author = "S. Kawasaki and T. Mito and Y. Kawasaki and Zheng, {G. Q.} and Y. Kitaoka and D. Aoki and Y. Haga and Y. Onuki",

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T1 - Gapless Magnetic and Quasiparticle Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn5

T2 - A Study of 115In NQR under Pressure

AU - Kawasaki, S.

AU - Mito, T.

AU - Kawasaki, Y.

AU - Zheng, G. Q.

AU - Kitaoka, Y.

AU - Aoki, D.

AU - Haga, Y.

AU - Onuki, Y.

PY - 2003/9/26

Y1 - 2003/9/26

N2 - The systematic measurements of ac susceptibility, nuclear-quadrupole-resonance spectrum and nuclear-spin-lattice-relaxation time (T1) on the pressure (P)-induced heavy-fermion superconductor CeRhIn5 were reported. The temperature (T) dependence of 1/T 1 at P = 1.6 GPa has revealed that antiferromagnetism (AFM) and superconductivity (SC) coexist microscopically, exhibiting the respective transition at TN=2.8 K and TcMF = 0.9 K. It was demonstrated that SC does not yield and trace of gap opening in low-lying excitations below Tconset = 2 K.

AB - The systematic measurements of ac susceptibility, nuclear-quadrupole-resonance spectrum and nuclear-spin-lattice-relaxation time (T1) on the pressure (P)-induced heavy-fermion superconductor CeRhIn5 were reported. The temperature (T) dependence of 1/T 1 at P = 1.6 GPa has revealed that antiferromagnetism (AFM) and superconductivity (SC) coexist microscopically, exhibiting the respective transition at TN=2.8 K and TcMF = 0.9 K. It was demonstrated that SC does not yield and trace of gap opening in low-lying excitations below Tconset = 2 K.

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Gapless Magnetic and Quasiparticle Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn₅: A Study of ¹¹⁵In NQR under Pressure

Abstract

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