Research output: Contribution to journal › Article
Effect of coupling with strain in multiferroics on phase diagrams and elastic anomalies. / Charnaya, E.V.; Pirozerskii, A.L.; Gabbasova, K.R.; Bugaev, A.S.
In: Physica B: Condensed Matter, Vol. 443, 2014, p. 49-53.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Effect of coupling with strain in multiferroics on phase diagrams and elastic anomalies
AU - Charnaya, E.V.
AU - Pirozerskii, A.L.
AU - Gabbasova, K.R.
AU - Bugaev, A.S.
PY - 2014
Y1 - 2014
N2 - The Landau theory was applied to [rear the phase diagrams for a multiferroic with two second order phase transitions taking into account the coupling of the primary order parameters with strain. Two order parameters are coupled biquadratically which corresponds to the magnetoelectric materials. The coupling with strain is assumed to be linear in strain and quadratic in order parameters. Three ordered phases are discussed. Analytic relationships were obtained for the phase transition temperatures and for elastic modulus changes through the phase transitions. Strong influence of the coupling with strain On the phase diagrams was shown.
AB - The Landau theory was applied to [rear the phase diagrams for a multiferroic with two second order phase transitions taking into account the coupling of the primary order parameters with strain. Two order parameters are coupled biquadratically which corresponds to the magnetoelectric materials. The coupling with strain is assumed to be linear in strain and quadratic in order parameters. Three ordered phases are discussed. Analytic relationships were obtained for the phase transition temperatures and for elastic modulus changes through the phase transitions. Strong influence of the coupling with strain On the phase diagrams was shown.
KW - Multiferroics
KW - Coupling wills strain
KW - Phase diagram
KW - Phase transition temperature
KW - Elastic modulus
U2 - 10.1016/j.physb.2014.02.048
DO - 10.1016/j.physb.2014.02.048
M3 - Article
VL - 443
SP - 49
EP - 53
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
ER -
ID: 7008962