Peculiarly strong room-temperature ferromagnetism from low Mn-doping in ZnO grown by molecular beam epitaxy
Abstract
Strong room-temperature ferromagnetism is demonstrated in single crystalline Mn-doped ZnO thin films grown by molecular beam epitaxy. Very low Mn doping concentration is investigated, and the measured magnetic moment is much larger than what is expected for an isolated ion based on Hund's rules. The ferromagnetic behavior evolves with Mn concentration. Both magnetic anisotropy and anomalous Hall effect confirm the intrinsic nature of ferromagnetism. While the Mn dopant plays a crucial role, another entity in the system is needed to explain the observed large magnetic moments.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 01, 2013
- Source ID
- 10.1063/1.4794799
Entities
People
- Jian-guo Zheng
- Jianlin Liu
- Muhammad Morshed
- W. P. Beyermann
- Yan Xin
- Zheng Zuo
Organizations
- Defense Advanced Research Projects Agency
- Florida State University
- University of California, Irvine
- University of California, Riverside