Investigation into the itinerant metamagnetism of Sr3Ru2O7 for the field parallel to the ruthenium oxygen planes

R S Perry, T Tayama, K Kitagawa, T Sakakibara, K Ishida, Y Maeno

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15 Citations (Scopus)

Abstract

We report a detailed investigation into the metamagnetism of Sr3Ru2O7 at low temperatures for the magnetic field parallel to the ruthenium oxygen planes. The metamagnetism is studied as a function of temperature, magnetic field and sample quality using magnetisation, magnetotransport and specific heat as probes. From hysteretic behaviour in the magnetisation, we confirm earlier work and observe a finite temperature critical point at (5T, > 0.25 K). In our highest quality samples two-step metamagnetic transitions are additionally observed at 5.8T and at 6.3T, which coincide with a range of broad maximum in the magnetoresistance. At low temperatures, these two metamagnetic features each further split in two. Such behaviour of the multiple transitions are qualitatively different from the first order transition at 5.1 T.

Original languageEnglish
Pages (from-to)1270-1274
Number of pages5
JournalJournal of the Physical Society of Japan
Volume74
DOIs
Publication statusPublished - Apr 2005

Keywords

  • strongly correlated
  • metamagnetism
  • Sr3Ru2O7
  • magnetisation
  • magneto resistance
  • quantum critical point
  • QUALITY SINGLE-CRYSTALS
  • QUANTUM CRITICALITY
  • PHASE-TRANSITIONS
  • MAGNETIC-FIELD
  • CERU2SI2

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