Giant improper ferroelectricity in the ferroaxial magnet CaMn 7O 12
In rhombohedral CaMn 7O 12, an improper ferroelectric polarization of magnitude 2870μCm -2 is induced by an incommensurate helical magnetic structure that evolves below T N1=90K. The electric polarization was found to be constrained to the high symmetry threefold rotation axis of the crystal structu...
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| المؤلفون الرئيسيون: |
Johnson, R,
Chapon, L,
Khalyavin, D,
Manuel, P,
Radaelli, P,
Martin, C |
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| التنسيق: | Journal article
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| اللغة: | English |
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| منشور في: |
2012
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