Resonating valence bond states generate Graphene spintronics

• Main Authors: Gu, Zhi-Min, 古智旻
• Other Authors: Wu, Kaung-Hsiung
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/s58f8x

碩士 === 國立交通大學 === 電子物理系所 === 105 === Investigate of the magnetic properties of graphene providing the potential in spintronic applications as well as the discussion of the zinc oxide (ZnO) inducing ferromagnetism will be reprsented in this thesis. Since the znic oxides possess some vacancies which produce ferromagnetism. we dicuss the effect of the oxygen vacancy (Ov) and the zinc vacancy (Znv) in the ferromagnetism induction, respectively. We also propose the spin-liquid order (SLO) produced from the resonating valence bond (RVB) states existing in the ferromagnetic zinc oxides and which will be transferred to graphene by inducing a magnetoc coupling as it is deposited on the surface of cobalt doped zinc oxide (CZO). In the resonating valence bond states involved graphene a net spin polarization will br observed in the linear bands with the chemical potential energy. The theoretical model is constructed to investigate the mechanics of ferromagnetism as well as the spin characteristics of CZO.