Frist principle calculations studies has revealed the significance of proximity effects of a magnetic insulator, europium oxide, on graphene spin related properties. Large spin polarization around 24 % and exchange-splitting band gap around 36 meV are reported.
http://prl.aps.org/abstract/PRL/v110/i4/e046603
http://prl.aps.org/abstract/PRL/v110/i4/e046603
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