Magnetic structures of exchange bias Ni/FeF2(1 1 0) interface |
| |
Authors: | Yusuke Ishihama Kohji Nakamura Toru Akiyama Tomonori Ito |
| |
Affiliation: | Department of Physics Engineering, Mie University, 1577 Kurima-machiya, Tsu, Mie 514-8507, Japan |
| |
Abstract: | Electronic and magnetic structures of ferromagnetic (FM)/antiferromagnetic (AFM), Ni/FeF2(1 1 0), with a compensated AFM interface are investigated by using the full-potential linearized augmented plane-wave method. We find that magnetic structures at the AFM interface are perturbed by a contact with the FM material, where the superexchange interaction through the interface F excites and induces a small net moment at the AFM interface. These results predicted may play an important role for explaining the exchange bias in this system, and rule out the exchange bias mechanisms with the spin-flop coupling and the magnetic moment reorientation. |
| |
Keywords: | 75.70.Cn 75.50.Ee 72.80.Ga |
本文献已被 ScienceDirect 等数据库收录! |
|