Magnetic field-dependent shape anisotropy in small patterned films studied using rotating magnetoresistance.

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The Key Lab for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Tianshui South Road 222, 730000 Lanzhou, People's Republic of China.

Published: November 2015


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Article Abstract

Based on the electric rotating magnetoresistance method, the shape anisotropy of a Co microstrip has been systematically investigated. We find that the shape anisotropy is dependent not only on the shape itself, but also on the magnetization distribution controlled by an applied magnetic field. Together with micro-magnetic simulations, we present a visualized picture of how non-uniform magnetization affects the values and polarities of the anisotropy constants K1 and K2. From the perspective of potential appliantions, our results are useful in designing and understanding the performance of micro- and nano-scale patterned ferromagnetic units and the related device properties.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4643335PMC
http://dx.doi.org/10.1038/srep16139DOI Listing

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