Giant magnetoresistance effect in a magnetic barrier nanostructure |
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| Authors: | Jian-Duo Lu |
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| Institution: | Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Province Key Laboratory of Systems Science in Metallurgical Process, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | The giant magnetoresistance (MR) effect is theoretically studied in a magnetically modulated two-dimensional electron gas. We find that the significant transmission difference for electron tunneling through parallel and antiparallel magnetization configurations results in a considerable MR effect. We also find that the MR ratio strongly depends on the magnetic strength and the distance between the left edges of two ferromagnetic strips as well as the temperature. |
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| Keywords: | Magnetic nanostructure MR effect MR ratio |
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