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Colossal Spin Hall Effect in Ultrathin Metallic Films

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 نشر من قبل Christian Herschbach
 تاريخ النشر 2013
  مجال البحث فيزياء
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We predict spin Hall angles up to 80% for ultrathin noble metal films with substitutional Bi impurities. The colossal spin Hall effect is caused by enhancement of the spin Hall conductivity in reduced sample dimension and a strong reduction of the charge conductivity by resonant impurity scattering. These findings can be exploited to create materials with high efficiency of charge to spin current conversion by strain engineering.



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