[13p-P8-1~46] 10 スピントロニクス・マグネティクス(ポスター)

▲ [13p-P8-46] Magnetic properties in magnetron sputtering prepared ZnO thin films

〇Yu Zhang¹、Nao Nasu¹、Xinwei Zhao¹ (1.Tokyo Univ. of Sci.)

キーワード：ZnO

Diluted magnetic semiconductors which are semiconducting materials in which a fraction of the host cations can be substitutionally replaced by magnetic ions or appropriate rare earths have become a hot topic because of their potential applications in spintronics. Since the prediction that Mn-doped p-type ZnO is one of the most promising candidates for ferromagnetic DMSs with high curie temperature by Dietl in 2000, it has been difficult to achieve ZnO:Mn thin films which got room temperature ferromagnetic properties and the mechanism of the ferromagnetism has also been an issue of debate. Some of the studies found that even the undoped ZnO materials can show ferromagnetic properties. In this work, we prepared the ZnO thin films which showed hysteresis loops till room temperature by rf magnetron sputtering.