Ca3Ru2O7: Density Wave Formation and Quantum Oscillations in the Hall Resistivity

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概要

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• We describe transport measurements in single-crystal, high-purity Ca3Ru2O7. The observation of a large linear magnetoresistance together with low frequency quantum oscillations is shown to be consistent with a small volume Fermi surface incompletely gapped by density wave formation. This complements previous ARPES experiments. The quantum oscillations are more pronounced in the Hall signal than in the longitudinal resistivity. This unusual observation is also explained by the peculiar electronic structure in this material. We remark on the similarity between our observations in Ca3Ru2O7 and the observations of quantum oscillations in the underdoped cuprate superconductors.

• 2010-02-15

著者

• Mackenzie Andrew

  Scottish Universities Physics Alliance School Of Physics And Astronomy University Of St. Andrews

• Hicks Clifford

  Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9SS, Scotland, U.K.

• Schofield Andrew

  School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.

• Mackenzie Andrew

  Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9SS, Scotland, U.K.

• Kikugawa Naoki

  Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9SS, Scotland, U.K.

• Rost Andreas

  Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9SS, Scotland, U.K.

関連論文

• Physical Properties of Single-Crystalline CaRuO_3 Grown by a Floating-Zone Method(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Ca3Ru2O7: Density Wave Formation and Quantum Oscillations in the Hall Resistivity

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