Unidirectional magnetoresistance in magnetic thin films with non-uniform thickness
Source abstract
Abstract
The magnetoresistance (MR) of Co film and Co/Pt bilayers was studied systematically as a function of Co and Pt thickness at room temperature. In the samples with the wedge shape, we found the unidirectional MR which has the characteristics of RMz≠R(−Mz) with the magnetization normal to the film. The measured unidirectional MR is attributed to the differential anomalous Hall resistance due to the thickness difference at the electrodes for the longitudinal resistance measurements. The unidirectional MR effect in the Co/Pt bilayers can be greatly suppressed by a non-magnetic Cu inserting layer.
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Research context
OpenAlex topics: Magnetic properties of thin films · Theoretical and Computational Physics · Magnetic Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, State Key Laboratory of Surface Physics, and Advanced Materials Laboratory, Fudan University 1 , Shanghai 200433, China
Collaborative Innovation Center of Advanced Microstructures 2 , Nanjing 210093, China
Funding
National Key Basic Research Program of China · National Science Foundation of China · Program of Shanghai Academic Research Leader
References (20)
Show source-provided references
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