Low-temperature Hall effect in substituted Sr2RuO4

N Kikugawa, A P Mackenzie, C Bergemann, Y Maeno

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report the results of a study of the Hall effect and magnetoresistance in single crystals of Sr2RuO4 in which Sr2+ has been substituted by La3+ (Sr2-yLayRuO4) or Ru4+ by Ti4+ (Sr2Ru1-xTixO4). For undoped Sr2RuO4, the purity is so high that the strong-field Hall coefficient can be measured for fields above 4 T. The conventional weak-field Hall coefficient as a function of doping shows a sharp jump and sign change at ysimilar to0.01 that is unrelated to either a sharp change in Fermi-surface topography or a magnetic instability. The implications of these results are discussed.

Original languageEnglish
Pages (from-to)174501
Number of pages5
JournalPhysical Review. B, Condensed matter and materials physics
Volume70
Issue number17
DOIs
Publication statusPublished - Nov 2004

Keywords

  • SUPERCONDUCTOR SR2RUO4
  • LAYERED PEROVSKITE
  • TRIPLET
  • HEAVY
  • FIELD
  • METAL

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