Huge exchange-coupling field observed in FeMn-pinned spin valve with ultra-thin pinned NiFe layer |
| |
| Authors: | Xiao-Li Tang Huai-Wu ZhangHua Su Zhi-Yong ZhongYu-Lan Jing |
| |
| Institution: | State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China |
| |
| Abstract: | A conventional Ta/NiFe/Cu/NiFe/FeMn/Ta spin valve multilayer was prepared to investigate the exchange bias variations of the pinned NiFe layer. An exchange bias field of 560 Oe has been found in a valve multilayer with ultra-thin pinned NiFe layers (1 nm), in which a large constant magnetic field of 700 Oe was applied during film deposition procession. The observed results are attributed to the large applied magnetic field, which produced more net spins of the antiferromagnet at the interface. These interfacial uncompensated spins provide the net spin moments required for exchange coupling and bias. |
| |
| Keywords: | 75 70 cn 75 70 &minus i |
| 本文献已被 ScienceDirect 等数据库收录！ |
