Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements

Taichi Terashima, Naoki Kikugawa, Andhika Kiswandhi, Eun Sang Choi, James S. Brooks, Shigeru Kasahara, Tatsuya Watashige, Hiroaki Ikeda, Takasada Shibauchi, Yuji Matsuda, Thomas Wolf, Anna E. Böhmer, Frédéric Hardy, Christoph Meingast, Hilbert V. Löhneysen, Michi To Suzuki, Ryotaro Arita, Shinya Uji

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

We have observed Shubnikov-de Haas oscillations in FeSe. The Fermi surface deviates significantly from predictions of band-structure calculations and most likely consists of one electron and one hole thin cylinder. The carrier density is in the order of 0.01 carriers/Fe, an order of magnitude smaller than predicted. Effective Fermi energies as small as 3.6 meV are estimated. These findings call for elaborate theoretical investigations incorporating both electronic correlations and orbital ordering.

Original languageEnglish
Article number144517
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number14
DOIs
Publication statusPublished - 2014 Oct 29

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Terashima, T., Kikugawa, N., Kiswandhi, A., Choi, E. S., Brooks, J. S., Kasahara, S., Watashige, T., Ikeda, H., Shibauchi, T., Matsuda, Y., Wolf, T., Böhmer, A. E., Hardy, F., Meingast, C., Löhneysen, H. V., Suzuki, M. T., Arita, R., & Uji, S. (2014). Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements. Physical Review B - Condensed Matter and Materials Physics, 90(14), [144517]. https://doi.org/10.1103/PhysRevB.90.144517