Mn2FeWO6 : A new Ni3TeO6-type polar and magnetic oxide.
basic_science · Level V
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- Record sourced from PubMed, PMID 25677612.
- Also identified by DOI 10.1002/adma.201405244.
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Abstract
Mn(2+)2 Fe(2+)W(6+)O6 , a new polar magnetic phase, adopts the corundum-derived Ni3TeO6 -type structure with large spontaneous polarization (PS) of 67.8 μC cm(-2), complex antiferromagnetic order below ≈75 K, and field-induced first-order transition to a ferrimagnetic phase below ≈30 K. First-principles calculations predict a ferrimagnetic (udu) ground state, optimal switching path along the c-axis, and transition to a lower energy udu-udd magnetic double cell.