다강성 hexagonal RMnO3의 강유전성 발현에 관한 제1원리 연구
- Title
- 다강성 hexagonal RMnO3의 강유전성 발현에 관한 제1원리 연구
- Authors
- 옥민애
- Date Issued
- 2011
- Publisher
- 포항공과대학교
- Abstract
- Multiferroic exhibit simultaneous ferroic properties with coupled electric, magnetic, and structural orders. Recently, these materials have received a great deal of attention due to their potential for Magnetoelectric effect, which is the property that a magnetic field induces an electric polarization and, conversely, an electric field induces a magnetization. Among theses, manganite-based multiferroics have been most extensively studied. Orthorhombic manganites such as TbMnO3 and TbMn2O5 exhibit a strong tendency of the magnetoelectric coupling which stems from a spiral magnetic-ordering-induced improper or pseudo-proper ferroelectricity. In hexagonal manganites (h-RMnO3), on the other hand, a spiral magnetic order is absent and an asymmetric movement of R ions from the centrosymmetric position is known to be a prevailing factor in the manifestation of ferroelectricity.
- URI
- http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000000897854
https://oasis.postech.ac.kr/handle/2014.oak/1034
- Article Type
- Thesis
- Files in This Item:
- There are no files associated with this item.
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