This article is cited in 1 paper

XXIII International Symposium ''Nanophysics and Nanoelectronics'', Nizhny Novgorod, March 11--14, 2019
Superconductivity

On the nature of magnetic oscillations in YBCO high-temperature superconductors

P. D. Grigor'ev^abc, T. I. Mogilyuk^d, Aset Khamzauly<sup>b

a</sup> L.D. Landau Institute for Theoretical Physics of Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia
^b National University of Science and Technology «MISIS», Moscow
^c P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
^d National Research Centre "Kurchatov Institute", Moscow

Abstract: Possible causes of magnetic oscillations with a low frequency of about 2% of the Brillouin zone, observed in high-temperature superconductors of the YBCO family, are studied. A scenario is proposed in which the observed frequency is proportional to the difference of the bilayer-split closed pockets in the Fermi surface rebuilt due to scattering to charge-density-wave vectors. A method is proposed for experimental determination of which of the four possible scenarios for the rise of these magnetic oscillations is realized in YBCO.

Keywords: magnetic oscillations, high-temperature superconductors, slow oscillations, Fermi surface.

Received: 15.04.2019
Revised: 22.04.2019
Accepted: 24.04.2019

DOI: 10.21883/FTT.2019.09.48092.18N

 English version: Physics of the Solid State, 2019, 61:9, 1529–1534

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