The effects of current-path patterns on magnetotransport in spatially-confined structures by Monte Carlo simulation |
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| Authors: | Wu Jian-Chun Sun Hua and Li Zhen-Ya |
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| Affiliation: | Department of Physics and Jiangsu Key
Laboratory of Thin Films, Soochow University, Suzhou, 215006,
China |
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| Abstract: | Simulations are performed on clusters of finite size to
study the effects of size and current-path structure on
magnetotransport in spatially-confined samples. Magnetotransport
networks are established and calculated based on fractal structures
including Koch curves and percolation backbones extracted from
regular lattices. The structure pattern of clusters is shown to play
an important role in the magnetotransport behaviours by affecting
the magnetoresistance fluctuations due to spin disorder in the
systems of small size, which suggests the possibility of controlling
the magnetotransport by the design of current-path
configurations. |
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| Keywords: | magnetoresistance percolation magnetotransport network |
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