铁磁性
凝聚态物理
旋转
自旋(空气动力学)
电子
偏振器
自旋极化
电压
材料科学
人口
非平衡态热力学
偏压
物理
光学
量子力学
双折射
社会学
人口学
热力学
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1993-04-16
卷期号:260 (5106): 320-323
被引量:209
标识
DOI:10.1126/science.260.5106.320
摘要
A thin ferromagnetic film can be used to polarize the spin axes of the electrons carrying an electric current in a manner loosely analogous with a light polarizer. When such a film is fabricated on a gold film, a nonequilibrium population of spin-polarized electrons is built up in the gold causing a "spin bottleneck" effect. The addition of a second ferromagnetic film results in a device whose output voltage depends on the orientation of the spins.
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