期刊
JOURNAL OF APPLIED PHYSICS
卷 115, 期 17, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4865780
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资金
- JST-ALCA
We studied lattice deformation effect on exchange interaction in the corundum-type Cr2O3 theoretically. First-principles electronic structure calculations were performed to evaluate the total energy and exchange coupling constants of Cr2O3 under lattice deformation. We found that a few percent elastic deformation is expected via misfit strain and that the first- and second-nearest neighbor exchange coupling constants of Cr2O3 strongly depend on the lattice deformation. These results imply a possibility for improving the thermal stability of Cr2O3 based magnetoelectric devices by lattice deformation. (C) 2014 AIP Publishing LLC.
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