Evidence of Vacancy-Induced Room Temperature Ferromagnetism in Amorphous and Crystalline Al2O3 Nanoparticles

• Published in: Journal of physical chemistry. C Vol. 115; no. 34; pp. 16814 - 16818
• Main Authors: Yang, Guijin, Gao, Daqiang, Zhang, Jinlin, Zhang, Jing, Shi, Zhenhua, Xue, Desheng
• Format: Journal Article
• Language: English
• Published: American Chemical Society 01.09.2011
• Subjects: C: Nanops and Nanostructures

Amorphous and crystalline Al2O3 nanoparticles were synthesized by a sol–gel method with postannealing at different temperatures. Magnetism measurements have indicated that all Al2O3 nanoparticles exhibit intrinsic room temperature ferromagnetism, and the saturation magnetism of the samples increases...