Magnetic excitations in 214-ruthenates

M. Braden, O. Friedt, Y. Sidis, P. Bourges, P. Pfeuty, S. Nakatsuji, Zhiqiang Mao, N. Kikugawa, M. Minakata, Y. Maeno

Research output: Contribution to journalConference article

2 Scopus citations

Abstract

We discuss magnetic excitations in several 214-ruthenates as observed by inelastic neutron scattering. In the spin-triplet superconductor Sr2RuO4 the magnetic excitation spectrum is dominated by incommensurate peaks arising from Fermi surface nesting. Evidence that Sr2RuO4 is close to the corresponding spin-density wave (SDW) ordering is found in the temperature dependence of the spectrum which shows some scaling behavior. The corresponding SDW ordering is finally induced by substituting a small amount of Ru through Ti. The possible role of ferromagnetic fluctuations is further analyzed on the base on Ca-substituted samples which exhibit a strongly enhanced macroscopic magnetic susceptibility.

Original languageEnglish (US)
Pages (from-to)489-490
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume388-389
DOIs
StatePublished - May 1 2003
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: Aug 20 2002Aug 27 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Braden, M., Friedt, O., Sidis, Y., Bourges, P., Pfeuty, P., Nakatsuji, S., Mao, Z., Kikugawa, N., Minakata, M., & Maeno, Y. (2003). Magnetic excitations in 214-ruthenates. Physica C: Superconductivity and its applications, 388-389, 489-490. https://doi.org/10.1016/S0921-4534(02)02390-0