Alternating-field magnetoresistance measurements on Sr3Ru2O7

F. Weickert, P. Gegenwart, R. S. Perry, Y. Maeno

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We apply an alternating-field (af) magnetoresistance technique to investigate the temperature-field (T-H) phase diagram of the bilayer ruthenate Sr3Ru2O7 in close vicinity of the metamagnetic quantum critical end point. The out-of-phase component of the af magnetoresistance is extremely sensitive to hysteresis effects. Clear peaks are observed when entering the bounded regime at low temperatures. They mark two separate first-order phase transitions ending at 0.7 and 0.45 K, respectively. No indication for hysteresis is observed inside the bounded regime. (C) 2007 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)520-521
Number of pages2
JournalPhysica C: Superconductivity
Issue number1
Publication statusPublished - 1 Sept 2007


  • quantum criticality
  • metamagnetism
  • Sr3Ru2O7


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