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 language | English |
|---|---|
| Article number | 220507 |
| Pages (from-to) | 2205071-2205074 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 63 |
| Issue number | 22 |
| Publication status | Published - 2001 |
| Externally published | Yes |
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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 journal › Article
}
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 -