Room temperature ferromagnetism and red shift of band gap in (Mn2+, Mg2+) co-doped ZnO nanoparticles

被引：5

作者：

Satheesan, M. K. ^{[1
]}

Kumar, Viswanathan ^{[2
]}

机构：

[1] Kannur Univ, Sch Chem Sci, Dept Chem, Kannur, Kerala, India

[2] Govt India, Ctr Mat Elect Technol C MET, Minist Elect & Informat Technol, Athani PO, Trichur 680581, Kerala, India

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2017年 / 28卷 / 23期

关键词：

MAGNETIC-PROPERTIES; ENERGY-GAP; THIN-FILMS; DEFECTS; SEMICONDUCTORS; EXCHANGE; LI;

D O I：

10.1007/s10854-017-7697-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study we report, for the first time, room temperature ferromagnetism in (Zn1-xMgxMn0.01)O nanoparticles having Mg concentration in the range 0 < x < 0.10 prepared by sol-gel method. It is observed that the room temperature ferromagnetic ordering varies with Mg concentration. Compared with Mn-doped ZnO (Zn0.99Mn0.01O) nanoparticles, the (Mn, Mg) co-doped ZnO nanoparticles exhibit decreased room temperature ferromagnetism. This study also reports the balance of the two competing effects from the blue shift of band gap as a result of Mg doping and sp-d ferromagnetic exchange interaction leading to red-shift of band-gap.

引用

页码：17601 / 17605

页数：5

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