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 journalArticlepeer-review

206 Citations (Scopus)

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 languageEnglish
Pages (from-to)1154-1157
Number of pages4
JournalScience
Volume306
Issue number5699
DOIs
Publication statusPublished - 12 Nov 2004

Keywords

  • FERMI-LIQUID
  • RUTHENATE SR3RU2O7
  • SUPERCONDUCTIVITY
  • INSTABILITY
  • TRANSITIONS
  • ELECTRON
  • ORDER

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