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ÎÄÕ±êÌ⣺Spin-Canting-Induced Improper Ferroelectricity and Spontaneous Magnetization  Reversal in SmFeO3
»°£º1.Multiferroics exhibit simultaneous ferroic properties with
coupled electric, magnetic, and structural orders.
2. First-principles calculations indicate that the canted antiferro-
magnetic ordering with two nonequivalent spin pairs is responsible for this extraordinary polarization and
that the reverse Dzyaloshinskii-Moriya interaction dominates over the exchange-striction mechanism in
the manifestation of the improper ferroelectricity.
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