New superconducting and magnetic phases emerge on the magnetic criticality in CeIn3

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

doi:10.1143/JPSJ.73.1647

New superconducting and magnetic phases emerge on the magnetic criticality in CeIn₃

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

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

47 Citations (Scopus)

Abstract

We report the discovery of new superconducting and novel magnetic phases in CeIn₃ on the verge of antiferromagnetism (AFM) under pressure (P) through the In-nuclear quadrupole resonance (NQR) measurements. We have found a P-induced phase separation of AFM and paramagnetism (PM) without any trace of a quantum phase transition in CeIn₃. A new type of superconductivity (SC) was found, under P = 2.28-2.5 GPa, to coexist with AFM. It is magnetically separated from PM where the heavy fermion SC takes place. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.

Original language	English
Pages (from-to)	1647-1650
Number of pages	4
Journal	journal of the physical society of japan
Volume	73
Issue number	7
DOIs	https://doi.org/10.1143/JPSJ.73.1647
Publication status	Published - Jul 2004
Externally published	Yes

Keywords

CeIn
First-order phase transition
Heavy fermion
NQR
Pressure
Superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.73.1647

Cite this

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title = "New superconducting and magnetic phases emerge on the magnetic criticality in CeIn3",

abstract = "We report the discovery of new superconducting and novel magnetic phases in CeIn3 on the verge of antiferromagnetism (AFM) under pressure (P) through the In-nuclear quadrupole resonance (NQR) measurements. We have found a P-induced phase separation of AFM and paramagnetism (PM) without any trace of a quantum phase transition in CeIn3. A new type of superconductivity (SC) was found, under P = 2.28-2.5 GPa, to coexist with AFM. It is magnetically separated from PM where the heavy fermion SC takes place. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.",

keywords = "CeIn, First-order phase transition, Heavy fermion, NQR, Pressure, Superconductivity",

author = "S. Kawasaki and T. Mito and Y. Kawasaki and H. Kotegawa and Zheng, {G. Q.} and Y. Kitaoka and H. Shishido and S. Araki and R. Settai and Y. Onuki",

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T1 - New superconducting and magnetic phases emerge on the magnetic criticality in CeIn3

AU - Kawasaki, S.

AU - Mito, T.

AU - Kawasaki, Y.

AU - Kotegawa, H.

AU - Zheng, G. Q.

AU - Kitaoka, Y.

AU - Shishido, H.

AU - Araki, S.

AU - Settai, R.

AU - Onuki, Y.

PY - 2004/7

Y1 - 2004/7

N2 - We report the discovery of new superconducting and novel magnetic phases in CeIn3 on the verge of antiferromagnetism (AFM) under pressure (P) through the In-nuclear quadrupole resonance (NQR) measurements. We have found a P-induced phase separation of AFM and paramagnetism (PM) without any trace of a quantum phase transition in CeIn3. A new type of superconductivity (SC) was found, under P = 2.28-2.5 GPa, to coexist with AFM. It is magnetically separated from PM where the heavy fermion SC takes place. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.

AB - We report the discovery of new superconducting and novel magnetic phases in CeIn3 on the verge of antiferromagnetism (AFM) under pressure (P) through the In-nuclear quadrupole resonance (NQR) measurements. We have found a P-induced phase separation of AFM and paramagnetism (PM) without any trace of a quantum phase transition in CeIn3. A new type of superconductivity (SC) was found, under P = 2.28-2.5 GPa, to coexist with AFM. It is magnetically separated from PM where the heavy fermion SC takes place. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.

KW - CeIn

KW - First-order phase transition

KW - Heavy fermion

KW - NQR

KW - Pressure

KW - Superconductivity

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