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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