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Title: Effect of the stresses caused by substrate on the electrical conductivity of ferromagnetic manganite lanthanum–barium films

Abstract

This is a complex study of the electrophysical and magnetic characteristics of epitaxial manganite La{sub 0.7}Ba{sub 0.3}MnO{sub 3} (LBMO) films under conditions of crystal structure stresses caused by misfit in the lattice parameters of the LBMO crystal and a substrate. The substrate used had the lattice parameter smaller than that in the LBMO crystal. It is shown that the temperature dependence of the electrical resistance of the films at low temperatures is not dependent on the existence of stresses in the film and agrees well with the calculation with allowance made for the interaction of carriers with magnetic excitations in the presence of strongly correlated electronic states. The study of the ferromagnetic resonance line indicates an inhomogeneity of the ferromagnetic phase in the LBMO films and the increase in the ferromagnetic resonance line width with decreasing temperature.

Authors:
; ; ;  [1]; ;  [2];  [3]
  1. Russian Academy of Sciences, Institute of Radio Engineering and Electronics (Russian Federation)
  2. National University for Science and Technology MISiS (Russian Federation)
  3. Russian Academy of Sciences, Wave Research Center of the Prokhorov General Physics Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22771536
Resource Type:
Journal Article
Journal Name:
Physics of the Solid State
Additional Journal Information:
Journal Volume: 59; Journal Issue: 11; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7834
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CRYSTAL STRUCTURE; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; EPITAXY; EXCITATION; FERROMAGNETIC RESONANCE; FILMS; INTERACTIONS; LANTHANUM COMPOUNDS; LATTICE PARAMETERS; LINE WIDTHS; MAGNETIC PROPERTIES; MANGANATES; STRESSES; SUBSTRATES; TEMPERATURE DEPENDENCE

Citation Formats

Ovsyannikov, G. A., E-mail: gena@hitech.cplire.ru, Shaikhulov, T. A., Shakhunov, V. A., Demidov, V. V., Andreev, N. V., Pestun, A. E., and Preobrazhenskii, V. L.. Effect of the stresses caused by substrate on the electrical conductivity of ferromagnetic manganite lanthanum–barium films. United States: N. p., 2017. Web. doi:10.1134/S1063783417110245.
Ovsyannikov, G. A., E-mail: gena@hitech.cplire.ru, Shaikhulov, T. A., Shakhunov, V. A., Demidov, V. V., Andreev, N. V., Pestun, A. E., & Preobrazhenskii, V. L.. Effect of the stresses caused by substrate on the electrical conductivity of ferromagnetic manganite lanthanum–barium films. United States. doi:10.1134/S1063783417110245.
Ovsyannikov, G. A., E-mail: gena@hitech.cplire.ru, Shaikhulov, T. A., Shakhunov, V. A., Demidov, V. V., Andreev, N. V., Pestun, A. E., and Preobrazhenskii, V. L.. Wed . "Effect of the stresses caused by substrate on the electrical conductivity of ferromagnetic manganite lanthanum–barium films". United States. doi:10.1134/S1063783417110245.
@article{osti_22771536,
title = {Effect of the stresses caused by substrate on the electrical conductivity of ferromagnetic manganite lanthanum–barium films},
author = {Ovsyannikov, G. A., E-mail: gena@hitech.cplire.ru and Shaikhulov, T. A. and Shakhunov, V. A. and Demidov, V. V. and Andreev, N. V. and Pestun, A. E. and Preobrazhenskii, V. L.},
abstractNote = {This is a complex study of the electrophysical and magnetic characteristics of epitaxial manganite La{sub 0.7}Ba{sub 0.3}MnO{sub 3} (LBMO) films under conditions of crystal structure stresses caused by misfit in the lattice parameters of the LBMO crystal and a substrate. The substrate used had the lattice parameter smaller than that in the LBMO crystal. It is shown that the temperature dependence of the electrical resistance of the films at low temperatures is not dependent on the existence of stresses in the film and agrees well with the calculation with allowance made for the interaction of carriers with magnetic excitations in the presence of strongly correlated electronic states. The study of the ferromagnetic resonance line indicates an inhomogeneity of the ferromagnetic phase in the LBMO films and the increase in the ferromagnetic resonance line width with decreasing temperature.},
doi = {10.1134/S1063783417110245},
journal = {Physics of the Solid State},
issn = {1063-7834},
number = 11,
volume = 59,
place = {United States},
year = {2017},
month = {11}
}