Synthesis and Room Temperature d^o Ferromagnetic Properties of α-MoO_3 Nanofibers

作     者：Sandeep K.S.Patel Khemchand Dewangan N.S.Gajbhiye 

作者机构：Department of ChemistryIndian Institute of Technology Department of ChemistryIndira Gandhi National Tribal University 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2015年第31卷第5期

页      面：453-457页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Council of Scientific and Industrial Research, India, CSIR Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी 

主　　题：Ferromagnetism Molybdenum oxide Annealing treatmen 

摘      要：Herein,we report the magnetic properties of α-MoO3nanofibers synthesized via a hydrothermal method.X-ray photoelectron and Raman spectroscopic studies have been employed to evidence the presence of oxygen vacancy defects in the α-*** elucidate the oxygen vacancy related ferromagnetism,post-thermal annealing in oxygen and vacuum was *** UV emission band of α-MoO3nanofibers reveals a red shift from oxygen annealed to vacuum annealed,indicating a bandedge *** saturation magnetization of oxygen annealed nanofibers decreases while that of vacuum annealed nanofibers *** results strongly confirm that the oxygen vacancies play a significant role in inducing *** origin of ferromagnetism may be due to the exchange interactions among localized electron spin moments resulting from oxygen vacancies of α-*** presence of such defects was further supported by the photoluminescence measurements.