Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality

Santiago Andres Grigera; P Gegenwart; RA Borzi; F Weickert; AJ Schofield; RS Perry; T Tayama; T Sakakibara; Y Maeno; Andrew Green; Andrew Peter Mackenzie

doi:10.1126/science.1104306

Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality

Santiago Andres Grigera, P Gegenwart, RA Borzi, F Weickert, AJ Schofield, RS Perry, T Tayama, T Sakakibara, Y Maeno, Andrew Green, Andrew Peter Mackenzie

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

Abstract

Condensed systems of strongly interacting electrons are idea[ 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 Sr3Ru2O7,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
Publication status	Published - 12 Nov 2004

Keywords

FERMI-LIQUID
RUTHENATE SR3RU2O7
SUPERCONDUCTIVITY
INSTABILITY
TRANSITIONS
ELECTRON
ORDER

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10.1126/science.1104306

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title = "Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality",

abstract = "Condensed systems of strongly interacting electrons are idea[ 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 Sr3Ru2O7,and we discuss the possibility that the observed phase is due to a spin-dependent symmetry-breaking Fermi surface distortion.",

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year = "2004",

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doi = "10.1126/science.1104306",

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T1 - Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality

AU - Grigera, Santiago Andres

AU - Gegenwart, P

AU - Borzi, RA

AU - Weickert, F

AU - Schofield, AJ

AU - Perry, RS

AU - Tayama, T

AU - Sakakibara, T

AU - Maeno, Y

AU - Green, Andrew

AU - Mackenzie, Andrew Peter

N1 - APM leader of group responsible for the main advance reported in the paper and corresponding author.

PY - 2004/11/12

Y1 - 2004/11/12

N2 - Condensed systems of strongly interacting electrons are idea[ 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 Sr3Ru2O7,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 idea[ 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 Sr3Ru2O7,and we discuss the possibility that the observed phase is due to a spin-dependent symmetry-breaking Fermi surface distortion.

KW - FERMI-LIQUID

KW - RUTHENATE SR3RU2O7

KW - SUPERCONDUCTIVITY

KW - INSTABILITY

KW - TRANSITIONS

KW - ELECTRON

KW - ORDER

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EP - 1157

JO - Science

JF - Science

IS - 5699

ER -

Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality

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Keywords

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