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Spin-Polarized Electron Injection in Co/Cu/Fe Sandwich Structure |
| WANG Shou-Guo1;CHEN Yan-Xue1;WANG Zhi-He2;CHEN Qiang3;CHEN Jing-Lin3;SHEN Hong-Lie2;LIU Yi-Hua1;XIE Shi-Jie1;MEI Liang-Mo1 |
| 1Department of Physics, Shandong University, Jinan 250100
2Shanghai Metallurgy Institute, Chinese Academy of Sciences, Shanghai 200050
31nstitute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031
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| Cite this article: |
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WANG Shou-Guo, CHEN Yan-Xue, WANG Zhi-He et al 2000 Chin. Phys. Lett. 17 603-605 |
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Abstract A material asymmetry Co/Cu/Fe junction structure has been prepared for studying the spin-polarized electron injection at 77K. The sample performance was demonstrated to be analogous to that of a bipolar transistor. The maximal value of the output pulse voltage between Cu and Fe layers could reach the order of several μV when the bias current between Co and Cu layers was 10μA. The interface roughness, photograph of material, magnetic loop and injection characteristic curves have been measured. Some important points on this topic have been discussed.
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| Keywords:
75.70.-i
73.40.-c
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Published: 01 August 2000
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| PACS: |
75.70.-i
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(Magnetic properties of thin films, surfaces, and interfaces)
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73.40.-c
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(Electronic transport in interface structures)
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