Point Defects Induced Ferromagnetism in Neutron Irradiated MgO(110) Single Crystals

被引：0
|
作者：
Cao Mengxiong [1 ]
Wang Xingyu [1 ]
Ma Yaru [1 ]
Ma Chunlin [1 ]
Zhou Weiping [1 ]
Wang Xiaoxiong [1 ]
Wang Haiou [2 ]
Tan Weishi [1 ,3 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Sci, Dept Appl Phys, Key Lab Soft Chem & Funct Mat,Minist Educ, Nanjing 210094, Jiangsu, Peoples R China
[2] Hangzhou Dianzi Univ, Inst Mat Phys, Hangzhou 310018, Zhejiang, Peoples R China
[3] Hunan City Univ, Coll Commun & Elect Engn, Yiyang 413002, Hunan, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2018年 / 34卷 / 04期
基金：
中国国家自然科学基金;
关键词：
MgO single crystal; Neutron irradiation; Point defect; d(0) ferromagnetism; RSM; Color center; ROOM-TEMPERATURE FERROMAGNETISM; X-RAY-DIFFRACTION; THERMAL-DECOMPOSITION; D(0) FERROMAGNETISM; MGO; NANOPARTICLES; MAGNETISM; OXIDES; FILMS;
D O I：
10.3866/PKU.WHXB201709043
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The MgO(110) single crystals were neutron-irradiated with different doses ranging from 1.0x10(16) to 1.0x10(20) cm(-2). The isointensity profiles of the X-ray diffuse scattering caused by the cubic and double-force point defects in MgO were calculated on the basis of the Huang scattering theory. The X-ray diffuse scattering and the UV-Vis absorption spectra were recorded to investigate the point defect configurations in the MgO(110) crystals. Furthermore, the magnetic properties were characterized by a superconducting quantum interference device magnetometer. The omega-2 theta curves and rocking curves implied that neutron irradiation enhanced the lattice distortion. The point defects were produced in irradiated MgO crystals. The measured reciprocal space mappings (RSMs) revealed that the notable diffuse scattering was
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页码：437 / 444
页数：8
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