Affiliations
Advanced Electron Microscopy Group and High Voltage Electron Microscopy Station, National Institute for Materials Science, Tsukuba 305-0044, Japan
- X. Z. Yu &
- Y. Matsui
Multiferroics Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Tokyo 113-8656, Japan
- X. Z. Yu,
- Y. Onose &
- Y. Tokura
Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
- Y. Onose,
- N. Kanazawa,
- N. Nagaosa &
- Y. Tokura
Department of Physics, Sung Kyun Kwan University, Suwon 440-746, Korea
- J. H. Park &
- J. H. Han
Cross-Correlated Materials Research Group and Correlated Electron Research Group, RIKEN-ASI, Wako 351-0198, Japan
- N. Nagaosa &
- Y. Tokura
Contributions
Y.T. contributed to the planning of the study and the writing of the paper. X.Z.Y. and Y.M. performed the Lorentz TEM observations and wrote the experimental section of the paper. Y.O. and N.K. grew the sample crystal and contributed to the assignment of the Lorentz TEM images. J.H.P., J.H.H. and N.N. did the calculations and wrote a significant part of the discussion.
Competing financial interests
The authors declare no competing financial interests.
Corresponding authors
Correspondence to:
- X. Z. Yu (yu.xiuzhen@nims.go.jp) or
- Y. Tokura (tokura@ap.t.u-tokyo.ac.jp)
