| Title: |
Electronic charge transfer driven by spin cycloidal structure |
| Authors: |
Ishii, Y.; Horio, S.; Noda, Y.; Hiraishi, M.; Okabe, H.; Miyazaki, M.; Takeshita, S.; Koda, A.; Kojima, K. M.; Kadono, R.; Sagayama, H.; Nakao, H.; Murakami, Y.; Kimura, H. |
| Source: |
Physical Review B, 101, 224436 (2020) |
| Publication Year: |
2020 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Strongly Correlated Electrons |
| Description: |
Muon spin rotation and resonant soft X-ray scattering experiments on prototype multiferroics RMn2O5 (R = Y, Sm) are used to demonstrate that the local electric displacements are driven by the spin-current (SC) mechanism. Small local electric displacements were evaluated by observing spin polarization at ligand O ions, for which implanted muons served as an extremely sensitive probe. Our results for YMn2O5 provide evidence that the spin polarization of O ions forming a spin cycloid chain with Mn spins increases in proportion to the vector spin chirality (Si x Sj ) of the Mn ions. This relationship strongly indicates that the charge transfer between O and Mn ions is driven by the SC mechanism, which leads to the ferroelectricity accompanying O spin polarization. |
| Document Type: |
Working Paper |
| DOI: |
10.1103/PhysRevB.101.224436 |
| Access URL: |
http://arxiv.org/abs/2006.15834 |
| Accession Number: |
edsarx.2006.15834 |
| Database: |
arXiv |