Bilayer splitting versus Fermi-surface warping as an origin of slow oscillations of in-plane magnetoresistance in rare-earth tritellurides

Pavel D. Grigoriev (), Alexander A. Sinchenko, Pascal Lejay, Abdellali Hadj-Azzem, Joël Balay, Olivier Leynaud, Vladimir N. Zverev and Pierre Monceau
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Pavel D. Grigoriev: L.D. Landau Institute for Theoretical Physics
Alexander A. Sinchenko: Kotel’nikov Institute of Radioengineering and Electronics of RAS
Pascal Lejay: Univ. Grenoble Alpes, Inst. Neel
Abdellali Hadj-Azzem: Univ. Grenoble Alpes, Inst. Neel
Joël Balay: Univ. Grenoble Alpes, Inst. Neel
Olivier Leynaud: Univ. Grenoble Alpes, Inst. Neel
Vladimir N. Zverev: Institute of Solid State Physics
Pierre Monceau: Univ. Grenoble Alpes, Inst. Neel

The European Physical Journal B: Condensed Matter and Complex Systems, 2016, vol. 89, issue 6, 1-10

Abstract: Abstract Slow oscillations (SlO) of the in-plane magnetoresistance with a frequency less than 4 T are observed in the rare-earth tritellurides and proposed as an effective tool to explore the electronic structure in various strongly anisotropic quasi-two-dimensional compounds. Contrary to the usual Shubnikov-de-Haas oscillations, SlO originate not from small Fermi-surface pockets, but from the entanglement of close frequencies due to a finite interlayer transfer integral, either between the two Te planes forming a bilayer or between two adjacent bilayers. From the observed angular dependence of the frequency and the phase of SlO we argue that they originate from the bilayer splitting rather than from the Fermi-surface warping. The SlO frequency gives the value of the interlayer transfer integral ≈1 meV for TbTe3 and GdTe3.

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1140/epjb/e2016-70159-6

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