【摘 要】
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Enhancement of the spin-orbit coupling in graphene may lead to various topological phenomena and also fnd applications in spintronics.Adatom absorption has
【机 构】
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人工微结构和介观物理国家重点实验室,北京,100871
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Enhancement of the spin-orbit coupling in graphene may lead to various topological phenomena and also fnd applications in spintronics.Adatom absorption has been proposed as an effective way to achieve the goal.In particular,great hope has been held for indium in strengthening the spin-orbit coupling and realizing the quantum spin Hall effect [1,2].To search for evidence of the spin-orbit coupling in graphene absorbed with indium adatoms,we carry out extensive transport measurements,i.e.,weak localization magnetoresistance,quantum Hall effect and non-local spin Hall effect.No signature of the spin-orbit coupling is found.Possible explanations are discussed.
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