Disorder-sensitive phase formation linked to metamagnetic quantum criticality

S. A. Grigera; P. Gegenwart; R. A. Borzi; F. Weickert; A. J. Schofield; R. S. Perry; T. Tayama; T. Sakakibara; Y. Maeno; A. G. Green; A. P. Mackenzie

doi:10.1126/science.1104306

Disorder-sensitive phase formation linked to metamagnetic quantum criticality

S. A. Grigera^*, P. Gegenwart, R. A. Borzi, F. Weickert, A. J. Schofield, R. S. Perry, T. Tayama, T. Sakakibara, Y. Maeno, A. G. Green, A. P. Mackenzie

^*Corresponding author for this work

Department of Physics

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

231 Scopus citations

Abstract

Condensed systems of strongly interacting electrons are ideal for the study of quantum complexity. It has become possible to promote the formation of new quantum phases by explicitly tuning systems toward special low-temperature quantum critical points. So far, the clearest examples have been appearances of superconductivity near pressure-tuned antiferromagnetic quantum critical points. We present experimental evidence for the formation of a non-superconducting phase in the vicinity of a magnetic field - tuned quantum critical point in ultrapure crystals of the ruthenate metal Sr₃Ru₂O ₇, and we discuss the possibility that the observed phase is due to a spin-dependent symmetry-breaking Fermi surface distortion.

Original language	English
Pages (from-to)	1154-1157
Number of pages	4
Journal	Science
Volume	306
Issue number	5699
DOIs	https://doi.org/10.1126/science.1104306
State	Published - 2004/11/12

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title = "Disorder-sensitive phase formation linked to metamagnetic quantum criticality",

abstract = "Condensed systems of strongly interacting electrons are ideal for the study of quantum complexity. It has become possible to promote the formation of new quantum phases by explicitly tuning systems toward special low-temperature quantum critical points. So far, the clearest examples have been appearances of superconductivity near pressure-tuned antiferromagnetic quantum critical points. We present experimental evidence for the formation of a non-superconducting phase in the vicinity of a magnetic field - tuned quantum critical point in ultrapure crystals of the ruthenate metal Sr3Ru2O 7, and we discuss the possibility that the observed phase is due to a spin-dependent symmetry-breaking Fermi surface distortion.",

author = "Grigera, {S. A.} and P. Gegenwart and Borzi, {R. A.} and F. Weickert and Schofield, {A. J.} and Perry, {R. S.} and T. Tayama and T. Sakakibara and Y. Maeno and Green, {A. G.} and Mackenzie, {A. P.}",

year = "2004",

month = nov,

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doi = "10.1126/science.1104306",

language = "英語",

volume = "306",

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TY - JOUR

T1 - Disorder-sensitive phase formation linked to metamagnetic quantum criticality

AU - Grigera, S. A.

AU - Gegenwart, P.

AU - Borzi, R. A.

AU - Weickert, F.

AU - Schofield, A. J.

AU - Perry, R. S.

AU - Tayama, T.

AU - Sakakibara, T.

AU - Maeno, Y.

AU - Green, A. G.

AU - Mackenzie, A. P.

PY - 2004/11/12

Y1 - 2004/11/12

N2 - Condensed systems of strongly interacting electrons are ideal for the study of quantum complexity. It has become possible to promote the formation of new quantum phases by explicitly tuning systems toward special low-temperature quantum critical points. So far, the clearest examples have been appearances of superconductivity near pressure-tuned antiferromagnetic quantum critical points. We present experimental evidence for the formation of a non-superconducting phase in the vicinity of a magnetic field - tuned quantum critical point in ultrapure crystals of the ruthenate metal Sr3Ru2O 7, and we discuss the possibility that the observed phase is due to a spin-dependent symmetry-breaking Fermi surface distortion.

AB - Condensed systems of strongly interacting electrons are ideal for the study of quantum complexity. It has become possible to promote the formation of new quantum phases by explicitly tuning systems toward special low-temperature quantum critical points. So far, the clearest examples have been appearances of superconductivity near pressure-tuned antiferromagnetic quantum critical points. We present experimental evidence for the formation of a non-superconducting phase in the vicinity of a magnetic field - tuned quantum critical point in ultrapure crystals of the ruthenate metal Sr3Ru2O 7, and we discuss the possibility that the observed phase is due to a spin-dependent symmetry-breaking Fermi surface distortion.

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DO - 10.1126/science.1104306

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SP - 1154

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JO - Science

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Disorder-sensitive phase formation linked to metamagnetic quantum criticality

Abstract

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