Antiferromagnetism and superconductivity in cerium based heavy-fermion compounds

Georg Knebel; Dai Aoki; Jacques Flouquet

doi:10.1016/j.crhy.2011.05.002

Antiferromagnetism and superconductivity in cerium based heavy-fermion compounds

Georg Knebel, Dai Aoki, Jacques Flouquet

IMR - Materials Processing and Characterization Division

Université Grenoble Alpes

Research output: Contribution to journal › Short survey › peer-review

37 Citations (Scopus)

Abstract

The study of competing ground states is a central issue in condensed matter physics. In this article we will discuss the interplay of antiferromagnetic order and unconventional superconductivity in Ce based heavy-fermion compounds. In all examples discussed superconductivity appears at the border of magnetic order. Special focus is given on the pressure-temperature-magnetic field phase diagram of CeRhIn₅ and CeCoIn₅ which allows one to discuss microscopic coexistence of magnetic order and superconductivity in detail. A striking point is the similarity of the phase diagram of different classes of strongly correlated systems which is discussed briefly. The recently discovered non-centrosymmetric superconductors will open a new access with the possible mixing of odd and even parity pairing. 2011 Académie des sciences.

Original language	English
Pages (from-to)	542-566
Number of pages	25
Journal	Comptes Rendus Physique
Volume	12
Issue number	5-6
DOIs	https://doi.org/10.1016/j.crhy.2011.05.002
Publication status	Published - 2011 Jun

Keywords

CeCoIn
CeRhIn
Heavy fermions
Quantum critical point
Unconventional superconductivity

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10.1016/j.crhy.2011.05.002

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title = "Antiferromagnetism and superconductivity in cerium based heavy-fermion compounds",

abstract = "The study of competing ground states is a central issue in condensed matter physics. In this article we will discuss the interplay of antiferromagnetic order and unconventional superconductivity in Ce based heavy-fermion compounds. In all examples discussed superconductivity appears at the border of magnetic order. Special focus is given on the pressure-temperature-magnetic field phase diagram of CeRhIn5 and CeCoIn5 which allows one to discuss microscopic coexistence of magnetic order and superconductivity in detail. A striking point is the similarity of the phase diagram of different classes of strongly correlated systems which is discussed briefly. The recently discovered non-centrosymmetric superconductors will open a new access with the possible mixing of odd and even parity pairing. 2011 Acad{\'e}mie des sciences.",

keywords = "CeCoIn, CeRhIn, Heavy fermions, Quantum critical point, Unconventional superconductivity",

author = "Georg Knebel and Dai Aoki and Jacques Flouquet",

note = "Funding Information: We thank J.-P. Brison, D. Braithwaite, A. Demuer, H. Harima, L. Howald, K. Izawa, D. Jaccard, W. Knafo, G. Lapertot, M.-A. Measson, K. Miyake, S. Raymond, E. Ressouche, B. Salce, R. Settai, and I. Sheikin for fruitful discussions. We acknowledge financial support to this work from the French National Research Agency (ANR with the contracts CORMAT, DELICE and ECCE), the European Research Council (ERC junior NewHeavyFermion). J.F. is supported as “director de recherche emeritus” by CNRS.",

year = "2011",

month = jun,

doi = "10.1016/j.crhy.2011.05.002",

language = "English",

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pages = "542--566",

journal = "Comptes Rendus Physique",

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TY - JOUR

T1 - Antiferromagnetism and superconductivity in cerium based heavy-fermion compounds

AU - Knebel, Georg

AU - Aoki, Dai

AU - Flouquet, Jacques

N1 - Funding Information: We thank J.-P. Brison, D. Braithwaite, A. Demuer, H. Harima, L. Howald, K. Izawa, D. Jaccard, W. Knafo, G. Lapertot, M.-A. Measson, K. Miyake, S. Raymond, E. Ressouche, B. Salce, R. Settai, and I. Sheikin for fruitful discussions. We acknowledge financial support to this work from the French National Research Agency (ANR with the contracts CORMAT, DELICE and ECCE), the European Research Council (ERC junior NewHeavyFermion). J.F. is supported as “director de recherche emeritus” by CNRS.

PY - 2011/6

Y1 - 2011/6

N2 - The study of competing ground states is a central issue in condensed matter physics. In this article we will discuss the interplay of antiferromagnetic order and unconventional superconductivity in Ce based heavy-fermion compounds. In all examples discussed superconductivity appears at the border of magnetic order. Special focus is given on the pressure-temperature-magnetic field phase diagram of CeRhIn5 and CeCoIn5 which allows one to discuss microscopic coexistence of magnetic order and superconductivity in detail. A striking point is the similarity of the phase diagram of different classes of strongly correlated systems which is discussed briefly. The recently discovered non-centrosymmetric superconductors will open a new access with the possible mixing of odd and even parity pairing. 2011 Académie des sciences.

AB - The study of competing ground states is a central issue in condensed matter physics. In this article we will discuss the interplay of antiferromagnetic order and unconventional superconductivity in Ce based heavy-fermion compounds. In all examples discussed superconductivity appears at the border of magnetic order. Special focus is given on the pressure-temperature-magnetic field phase diagram of CeRhIn5 and CeCoIn5 which allows one to discuss microscopic coexistence of magnetic order and superconductivity in detail. A striking point is the similarity of the phase diagram of different classes of strongly correlated systems which is discussed briefly. The recently discovered non-centrosymmetric superconductors will open a new access with the possible mixing of odd and even parity pairing. 2011 Académie des sciences.

KW - CeCoIn

KW - CeRhIn

KW - Heavy fermions

KW - Quantum critical point

KW - Unconventional superconductivity

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Antiferromagnetism and superconductivity in cerium based heavy-fermion compounds

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