Robust ferromagnetism in rare-earth and transition metal co-doped ZnO nanoparticles for spintronics applications

被引：12
|
作者：
Murtaza, Adil [1 ]
Zuo, Wen-liang [1 ]
Song, Xianghao [1 ]
Ghani, Awais [1 ]
Saeed, Azhar [1 ]
Yaseen, Muhammad [2 ]
Tian, Fanghua [1 ]
Yang, Sen [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Phys, MOE Key Lab Nonequilibrium Synth & Modulat Conden, State Key Lab Mech Behav Mat,Key Lab Adv Funct Ma, Xian 710049, Peoples R China
[2] Univ Agr Faisalabad, Dept Phys, Spin Optoelect & Ferrothermoelect SOFT Mat & Dev, Faisalabad 38040, Pakistan
来源：
MATERIALS LETTERS | 2022年 / 310卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Nanoparticles; Semiconductor; Ferromagnetism; Grain boundaries; Oxygen vacancies; GRAIN-BOUNDARIES; BEHAVIOR; PROGRESS;
D O I：
10.1016/j.matlet.2021.131479
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work reports on the robust ferromagnetism at room temperature in co-precipitation derived rare-earth (Tb) and transition metal (Co) co-doped ZnO nanoparticles (NPs). X-ray diffraction (XRD) analysis reveals the singlephase character. Morphological studies confirm the formation of spherical-shaped particles with different orientations separated by well-defined grain boundaries. The increase in oxygen vacancies is confirmed by photoluminescence (PL) spectra. The (Tb, Co) co-doped NPs exhibit room temperature ferromagnetic (RTFM) behavior, which has been discussed based on oxygen vacancies mediated magnetic polarons and the effect of grain boundaries.
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页数：3
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