Room-temperature ferromagnetism in epitaxial p-type K-doped ZnO films

被引:23
作者
Huang, Yubin [1 ]
Zhou, Wei [1 ]
Wu, Ping [1 ]
机构
[1] Tianjin Univ, Fac Sci, Dept Appl Phys, Inst Adv Mat Phys,Tianjin Key Lab Low Dimens Mat, Tianjin 300072, Peoples R China
基金
中国国家自然科学基金;
关键词
Epitaxial ZnO thin film; Ferromagnetism; p-type conductivity; First-principle calculation;
D O I
10.1016/j.ssc.2013.12.024
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Room temperature ferromagnetism with p-Lype conductivity was observed in epitaxial K-doped ZnO films prepared by RF-magnetron sputtering. The coincident changes in the electrical, optical and magnetic properties indicate that the cation holes play important roles in mediating the ferromagnetism in K-doped ZnO films. The maximum saturation magnetization of 8 emu/cm(3) was obtained in the 8% K-doped film and the thermal annealing in air could stabilize the ferromagnetic signature. Finally, first-principle calculations reveal that the magnetic properties in K-doped ZnO films are attributed to the strong p-p interaction between the unpaired 2p electrons at O sites. (C) 2013 Elsevier Ltd. All rights reserved
引用
收藏
页码:31 / 34
页数:4
相关论文
共 50 条
[41]   Polymer-assisted deposition and room-temperature ferromagnetism of amorphous Mn-doped gallium oxide films [J].
Dai, Xu ;
Zhang, Xi ;
Xiang, Gang .
SCRIPTA MATERIALIA, 2022, 220
[42]   Vanadium-Doped Molybdenum Diselenide Atomic Layers with Room-Temperature Ferromagnetism [J].
Deng, Jianjun ;
Zhou, Zhonghao ;
Chen, Jinglong ;
Cheng, Zhihai ;
Liu, Jia ;
Wang, Zhiyong .
CHEMPHYSCHEM, 2022, 23 (16)
[43]   Room-temperature ferromagnetism in doped face-centered cubic Fe nanoparticles [J].
Wei, BQ ;
Shima, M ;
Pati, R ;
Nayak, SK ;
Singh, DJ ;
Ma, RZ ;
Li, YB ;
Bando, Y ;
Nasu, S ;
Ajayan, PM .
SMALL, 2006, 2 (06) :804-809
[44]   Al and Ni co-doped ZnO films with room temperature ferromagnetism, low resistivity and high transparence [J].
Yu, Mingpeng ;
Qiu, Hong ;
Chen, Xiaobai ;
Li, Hui ;
Gong, Wei .
MATERIALS CHEMISTRY AND PHYSICS, 2011, 126 (03) :797-803
[45]   Cu+-codoping inducing the room-temperature magnetism and p-type conductivity of ZnCoO diluted magnetic semiconductor [J].
Cao, P. ;
Zhao, D. X. ;
Shen, D. Z. ;
Zhang, J. Y. ;
Zhang, Z. Z. ;
Bai, Y. .
APPLIED SURFACE SCIENCE, 2009, 255 (06) :3639-3641
[46]   Defect and dopant induced room temperature ferromagnetism in Ni doped ZnO nanoparticles [J].
Chithira, P. R. ;
John, Teny Theresa .
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 766 :572-583
[47]   The room temperature ferromagnetism of (N, Co) co-doped ZnO nanopaticles [J].
Cao, Ping ;
Bai, Yue ;
Qu, Zhi .
APPLIED DECISIONS IN AREA OF MECHANICAL ENGINEERING AND INDUSTRIAL MANUFACTURING, 2014, 577 :19-+
[48]   Ferromagnetism above room temperature in Cr-doped AlN films [J].
Song, Y. Y. ;
Quang, P. H. ;
Lim, K. S. ;
Yu, S. C. ;
Yoo, Y. G. .
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2006, 48 (06) :1449-1453
[49]   Role of defects in enhancing room temperature ferromagnetism of Mn doped ZnO nanoparticles [J].
Ekhande, L. V. ;
Dhas, V. V. ;
Kolekar, Y. D. ;
Ghosh, K. ;
Date, S. K. ;
Patil, S. I. .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2013, 250 (07) :1389-1397
[50]   Vacancy-induced Room-temperature Ferromagnetism in ZnO Rods Synthesized by Hydrothermal Method [J].
Hang, Lian-Mao ;
Zhang, Zhao-Ji ;
Zhang, Zhi-Yong .
INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS ENGINEERING (ICMME 2014), 2014, :613-616