Electronic structure and room temperature ferromagnetism of C doped TiO2

被引：16

作者：

Ablat, Abduleziz ^{[1
]}

Wu, Rong ^{[1
]}

Mamat, Mamatrishat ^{[1
]}

Ghupur, Yasin ^{[1
]}

Aimidula, Aimierding ^{[1
]}

Bake, Muhammad Ali ^{[1
]}

Gholam, Turghunjan ^{[1
]}

Wang, Jiaou ^{[2
]}

Qian, Haijie ^{[2
]}

Wu, Rui ^{[2
]}

Ibrahim, Kurash ^{[2
]}

机构：

[1] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2016年 / 243卷

基金：

中国国家自然科学基金;

关键词：

TiO2; Ferromagnetism; Structural; X-ray techniques; RAY-ABSORPTION SPECTROSCOPY; RUTILE TIO2;

D O I：

10.1016/j.ssc.2016.05.013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

C-doped TiO2 nanoparticles were successfully synthesized using a simple hydrothermal synthesis method. After this preparation, a portion of the samples were annealed separately in air on the one hand, and in argon on the other, and another portion remained untreated. The results of X-ray diffraction show that the untreated samples primarily display anatase and rutile structures. However, after annealing, the samples displayed the rutile structure only. The Ti K-edge and L-edge Near Edge X-ray Absorption Fine Structure analyses clearly show that C atoms were successfully incorporated into the TiO2 host lattice. All doped samples exhibit ferromagnetism at room temperature. The saturation magnetization (Ms) and coercive fields (Hc) tend to decrease after the samples are annealed in argon and in air. The maximum Ms of the untreated samples was approximately 0.038 emu/g. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：7 / 11

页数：5

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