Effect of Ar ion irradiation on the room temperature ferromagnetism of undoped and Cu-doped rutile TiO2 single crystals

被引：0

作者：

许楠楠 ^{[1
]}

李公平 ^{[1
,2
]}

林俏露 ^{[1
]}

刘欢 ^{[1
]}

包良满 ^{[3
]}

机构：

[1] School of Nuclear Science and Technology, Lanzhou University

[2] Shanghai Institute of Applied Physics, Chinese Academy of Sciences

[3] State Key Laboratory of Crystal Material, Shandong University

来源：

Chinese Physics B | 2016年 / 25卷 / 11期

基金：

中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;

关键词：

single-crystal TiO2; Cu ion implantation; Ar ion irradiation/post-irradiation; room-temperature ferromagnetism;

D O I：

暂无

中图分类号：

TN304.2 [化合物半导体];

学科分类号：

摘要：

Remarkable room-temperature ferromagnetism was observed both in undoped and Cu-doped rutile TiOsingle crystals(SCs).To tune their magnetism,Ar ion irradiation was quantitatively performed on the two crystals in which the saturation magnetizations for the samples were enhanced distinctively.The post-irradiation led to a spongelike layer in the near surface of the Cu-doped TiO.Meanwhile,a new CuO-like species present in the sample was found to be dissolved after the post-irradiation.Analyzing the magnetization data unambiguously reveals that the experimentally observed ferromagnetism is related to the intrinsic defects rather than the exotic Cu ions,while these ions are directly involved in boosting the absorption in the visible region.

引用

页码：403 / 407

页数：5

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