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Intrinsic role of ↑↑↓↓-type magnetic structure on magnetoelectric coupling in Y2NiMnO6.
- Source :
-
Applied Physics Letters . 6/15/2020, Vol. 116 Issue 24, p1-5. 5p. 2 Diagrams, 2 Charts, 2 Graphs. - Publication Year :
- 2020
-
Abstract
- Structure-property correlations are a major challenge in the investigation of magnetoelectric multiferroic materials. We have systematically investigated the intrinsic role of ↑↑↓↓-type order in magnetoelectric coupling in Y2NiMnO6. The calculated results reveal that the ferromagnetic (FM) order is the magnetic structure of the ground state and the total energy of ↑↑↓↓-type order is close to that of the FM order. The electric polarization is calculated to be 0.78 μC/cm2 along the crystallographic b-axis for UNi = UMn = 3 eV. In addition to the exchange-striction mechanism, a more noticeable contribution from redistribution of polarized charge is found in our study. Magnetic hysteresis loops show the ferromagnetism in Y2NiMnO6, which can be explained by magnetic field-induced spin flop transition from the E-type to FM order. Our DFT + U theoretical investigations also proposed a switching adiabatic path of magnetoelectric coupling, in which the 180° reverse of electric polarization is driven by rotation of spins. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 116
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 143876372
- Full Text :
- https://doi.org/10.1063/5.0009568