Anomalous Hall effect and magnetoresistance behavior in Co/Pd1-xAgx multilayers

作者：Guo Z B; Mi W B; Manchon A; Li J Q; Zhang B; Barba P G; Zhang X X^*

来源：Applied Physics Letters, 2013, 102(6): 062413.

DOI：10.1063/1.4792054

In this paper, we report anomalous Hall effect (AHE) correlated with the magnetoresistance behavior in [Co/Pd1-xAgx](n) multilayers. For the multilayers with n = 6, the increase in Ag content from x = 0 to 0.52 induces the change in AHE sign from negative surface scattering-dominated AHE to positive interface scattering-dominated AHE, which is accompanied with the transition from anisotropy magnetoresistance (AMR) dominated transport to giant magnetoresistance (GMR) dominated transport. For n = 80, scaling analysis with R-s proportional to rho(gamma)(xx) yields gamma similar to 3.44 for x = 0.52 which presents GMR-type transport, in contrast to gamma similar to 5.7 for x = 0 which presents AMR-type transport.

• 出版日期2013-2-11
• 单位天津大学