Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5: 115In-NQR study under pressure

T. Mito, Shinji Kawasaki, Guo-Qing Zheng, Y. Kawasaki, K. Ishida, Y. Kitaoka, D. Aoki, Y. Haga, Y. Onuki

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

We report 115In nuclear-quadrupole-resonance (NQR) measurements of the pressure(P)-induced superconductor CeRhIn5 in the antiferromagnetic (AF) and superconducting (SC) states. In the AF region, the internal field Hint at the In site is substantially reduced from Hint = 1.75 kOe at P = 0 to 0.39 kOe at P = 1.23 GPa, while the Néel temperature slightly changes with increasing P. This suggests that either the size in the ordered moment MQ(P) or the angle θ(P) between the direction of MQ(P) and the tetragonal c axis is extrapolated to zero at P* = 1.6±0.1 GPa at which a bulk SC transition is no longer- emergent. In the SC state at P =2.1 GPa, the nuclear spin-lattice relaxation rate 115(1/T1) has revealed a T3 dependence without the coherence peak just below Tc, giving evidence for the unconventional superconductivity. The dimensionality of the magnetic fluctuations in the normal state is also discussed.

Original languageEnglish
Article number220507
Pages (from-to)2205071-2205074
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number22
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Nuclear quadrupole resonance
nuclear quadrupole resonance
Spin-lattice relaxation
Magnetism
Superconductivity
spin-lattice relaxation
nuclear spin
Superconducting materials
superconductivity
moments
Temperature
temperature
Direction compound

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5 : 115In-NQR study under pressure. / Mito, T.; Kawasaki, Shinji; Zheng, Guo-Qing; Kawasaki, Y.; Ishida, K.; Kitaoka, Y.; Aoki, D.; Haga, Y.; Onuki, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 63, No. 22, 220507, 2001, p. 2205071-2205074.

Research output: Contribution to journalArticle

@article{9267e0fb9f0848baa4d8b68878147b5e,
title = "Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5: 115In-NQR study under pressure",
abstract = "We report 115In nuclear-quadrupole-resonance (NQR) measurements of the pressure(P)-induced superconductor CeRhIn5 in the antiferromagnetic (AF) and superconducting (SC) states. In the AF region, the internal field Hint at the In site is substantially reduced from Hint = 1.75 kOe at P = 0 to 0.39 kOe at P = 1.23 GPa, while the N{\'e}el temperature slightly changes with increasing P. This suggests that either the size in the ordered moment MQ(P) or the angle θ(P) between the direction of MQ(P) and the tetragonal c axis is extrapolated to zero at P* = 1.6±0.1 GPa at which a bulk SC transition is no longer- emergent. In the SC state at P =2.1 GPa, the nuclear spin-lattice relaxation rate 115(1/T1) has revealed a T3 dependence without the coherence peak just below Tc, giving evidence for the unconventional superconductivity. The dimensionality of the magnetic fluctuations in the normal state is also discussed.",
author = "T. Mito and Shinji Kawasaki and Guo-Qing Zheng and Y. Kawasaki and K. Ishida and Y. Kitaoka and D. Aoki and Y. Haga and Y. Onuki",
year = "2001",
language = "English",
volume = "63",
pages = "2205071--2205074",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "22",

}

TY - JOUR

T1 - Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5

T2 - 115In-NQR study under pressure

AU - Mito, T.

AU - Kawasaki, Shinji

AU - Zheng, Guo-Qing

AU - Kawasaki, Y.

AU - Ishida, K.

AU - Kitaoka, Y.

AU - Aoki, D.

AU - Haga, Y.

AU - Onuki, Y.

PY - 2001

Y1 - 2001

N2 - We report 115In nuclear-quadrupole-resonance (NQR) measurements of the pressure(P)-induced superconductor CeRhIn5 in the antiferromagnetic (AF) and superconducting (SC) states. In the AF region, the internal field Hint at the In site is substantially reduced from Hint = 1.75 kOe at P = 0 to 0.39 kOe at P = 1.23 GPa, while the Néel temperature slightly changes with increasing P. This suggests that either the size in the ordered moment MQ(P) or the angle θ(P) between the direction of MQ(P) and the tetragonal c axis is extrapolated to zero at P* = 1.6±0.1 GPa at which a bulk SC transition is no longer- emergent. In the SC state at P =2.1 GPa, the nuclear spin-lattice relaxation rate 115(1/T1) has revealed a T3 dependence without the coherence peak just below Tc, giving evidence for the unconventional superconductivity. The dimensionality of the magnetic fluctuations in the normal state is also discussed.

AB - We report 115In nuclear-quadrupole-resonance (NQR) measurements of the pressure(P)-induced superconductor CeRhIn5 in the antiferromagnetic (AF) and superconducting (SC) states. In the AF region, the internal field Hint at the In site is substantially reduced from Hint = 1.75 kOe at P = 0 to 0.39 kOe at P = 1.23 GPa, while the Néel temperature slightly changes with increasing P. This suggests that either the size in the ordered moment MQ(P) or the angle θ(P) between the direction of MQ(P) and the tetragonal c axis is extrapolated to zero at P* = 1.6±0.1 GPa at which a bulk SC transition is no longer- emergent. In the SC state at P =2.1 GPa, the nuclear spin-lattice relaxation rate 115(1/T1) has revealed a T3 dependence without the coherence peak just below Tc, giving evidence for the unconventional superconductivity. The dimensionality of the magnetic fluctuations in the normal state is also discussed.

UR - http://www.scopus.com/inward/record.url?scp=0034896327&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034896327&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0034896327

VL - 63

SP - 2205071

EP - 2205074

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 22

M1 - 220507

ER -