Magnetic-Domain-Wall-Induced Electrical Polarization in Rare-Earth Iron Garnet Systems: A First-Principles Study
Journal Article
·
· Physical Review Letters
- Univ. of Arkansas, Fayetteville, AR (United States); OSTI
- Univ. of Arkansas, Fayetteville, AR (United States)
- Fudan Univ., Shanghai (China)
- Fudan Univ., Shanghai (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China); 5Shanghai Qi Zhi Institute (China)
In this work, first-principles methods are employed to understand the existence of magnetic-domain-wall-induced electric polarization observed in rare-earth iron garnets. In contrast with previous beliefs, it is found that the occurrence of such polarization neither requires the local magnetic moments of the rare-earth ions nor noncollinear magnetism. It can rather be understood as originating from a magnetoelectric effect arising from ferromagnetic interactions between octahedral and tetrahedral Fe ions at the domain walls, and the mechanism behind is found to be a symmetric exchange-striction mechanism.
- Research Organization:
- Univ. of Arkansas, Fayetteville, AR (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0002220
- OSTI ID:
- 1801562
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 125; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Properties of rare-earth iron garnets from first principles
Phase stable rare earth garnets
MAGNETIC PROPERTIES OF THE RARE EARTH GARNETS
Journal Article
·
2017
· Physical Review B
·
OSTI ID:1532934
+2 more
Phase stable rare earth garnets
Patent
·
2013
·
OSTI ID:1084218
+1 more
MAGNETIC PROPERTIES OF THE RARE EARTH GARNETS
Journal Article
·
1959
· Journal of Applied Physics (U.S.)
·
OSTI ID:4250616