Cumulative effects of fluctuations and magnetoelectric coupling in two-dimensional RMnO3 (R = Tb, Lu and Y) multiferroics

Autor:	A. J. Fotue, Lukong Cornelius Fai, N.M. Hounkonnou, R.M. Keumo Tsiaze, G.E. Tongue Magne
Rok vydání:	2021
Předmět:	Physics Condensed Matter::Materials Science Phase transition Magnetization Paramagnetism Ferromagnetism Condensed matter physics Condensed Matter::Other General Physics and Astronomy Multiferroics Dielectric Ferroelectricity Spontaneous magnetization
Zdroj:	Physics Letters A. 400:127305
ISSN:	0375-9601
DOI:	10.1016/j.physleta.2021.127305
Popis:	This work investigates the cumulative effects of fluctuations of order parameters and magnetoelectric coupling on the two-dimensional RMnO 3 (R = Tb, Lu and Y). The study is carried out through a modified Landau model resulting from microscopic considerations. It is shown that during the transition from the paramagnetic (paraelectric) to ferromagnetic (ferroelectric) phases, the appearance of the spontaneous magnetization and polarization strongly depends on the fluctuations of order parameters and the magnetoelectric coupling. The prevalence of the fluctuation effects on the magnetoelectric constraints is also exhibited. This study can be used to understand the mechanism of magnetization induced by a ferroelectric phase transition and vice versa observed in multiferroic compounds.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9a1c0393c4e6085e1cd0ad4c799dac0f https://doi.org/10.1016/j.physleta.2021.127305 Zobrazit plný text záznamu Full Text from ScienceDirect