Electron magnetic resonance Fermi surface imaging: Applications to organic conductors and Sr2RuO4

S. Hill, A. Kovalev, M. M. Mola, C. Palassis, Z. Q. Mao, Y. Maeno, J. S. Qualls

Research output: Contribution to journalArticle

Abstract

We report detailed angle dependent studies of the metallic state microwave (40 to 200 GHz) magneto-conductivity of single crystal samples of the α-(BEDT-TFF)2KHg(SCN)4 organic charge density wave conductor, and the perovskite superconductor Sr2RuO4. We observe series' of resonant absorptions which we attribute to periodic orbit resonances - a phenomenon closely related to cyclotron resonance. By performing measurements on several samples, and in different electromagnetic field configurations, we are able to couple to different orbital modes (+ harmonics), which derive from deformations (warpings) of the quasi-one and quasi-two-dimensional Fermi surfaces of these compounds. These studies provide vital information concerning interlayer dispersion which, in turn, affects the Fermi surface nesting characteristics which are believed to play a crucial role in the low temperature physics of these exotic materials.

Original languageEnglish (US)
Pages (from-to)3109-3112
Number of pages4
JournalInternational Journal of Modern Physics B
Volume16
Issue number20-22
StatePublished - Aug 30 2002

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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    Hill, S., Kovalev, A., Mola, M. M., Palassis, C., Mao, Z. Q., Maeno, Y., & Qualls, J. S. (2002). Electron magnetic resonance Fermi surface imaging: Applications to organic conductors and Sr2RuO4. International Journal of Modern Physics B, 16(20-22), 3109-3112.