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JOURNALS // Fizika Tverdogo Tela // Archive

Fizika Tverdogo Tela, 2018 Volume 60, Issue 10, Pages 1866–1873 (Mi ftt9031)

This article is cited in 2 papers

Metals

Parameters of nuclear quadrupole interaction and spatial distribution of electronic defects in YBa$_{2}$Cu$_{3}$O$_{7}$ and La$_{2-x}$Sr$_{x}$CuO$_{4}$ lattices

E. I. Terukovab, A. V. Marchenkoc, P. P. Sereginc, V. S. Kiselevc, K. B. Shakhovichc

a Ioffe Institute, St. Petersburg
b Saint Petersburg Electrotechnical University "LETI"
c Herzen State Pedagogical University of Russia, St. Petersburg

Abstract: The comparison of calculated and experimental parameters of nuclear quadrupole interaction in the sites of crystal lattice of YBa$_{2}$Cu$_{3}$O$_{7}$ and La$_{2-x}$Sr$_{x}$CuO$_{4}$ superconducting copper metal oxides has shown that effective charges of all atoms of superconducting ceramic lattices correspond to standard rates of their oxidation, except the atoms of chain and planar oxygen in YBa$_{2}$Cu$_{3}$O$_{7}$ lattice and atoms of planar oxygen in La$_{2-x}$Sr$_{x}$CuO$_{4}$ lattice, whose decreased charge is interpreted as a result of hole localization in the corresponding sublattices.

Received: 03.04.2018

DOI: 10.21883/FTT.2018.10.46510.091


 English version:
Physics of the Solid State, 2018, 60:10, 1908–1915

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