Coupled Magnetic Cycloids in Multiferroic TbMnO3 and Eu3/4Y1/4MnO3
Journal Article
·
· Physical Review Letters
Based on the detailed Mn L{sub 2,3}-edge x-ray resonant scattering results, we report a new complexity in the magnetic order of multiferroic orthomangnites, which has been considered as the simple A-type cycloid order inducing ferroelectricity. The Dzyaloshinskii-Moriya interaction involved in the orthorhombic distortion brings on F-type canting from the A type, and the ordering type becomes the off-phase synchronized bc cycloid in TbMnO{sub 3} or the tilted antiphase ab cycloid in Eu{sub 3/4}Y{sub 1/4}MnO{sub 3}. The F-type canting is responsible for the magnetic field-driven multiferroicity to weak ferromagnetism transition.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE SC OFFICE OF SCIENCE (SC)
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1041696
- Report Number(s):
- BNL-97374-2012-JA; PRLTAO; TRN: US201212%%108
- Journal Information:
- Physical Review Letters, Vol. 106, Issue 4; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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