Title of article :
Enhanced room temperature ferromagnetism in porous BiFeO3 prepared using cotton templates
Author/Authors :
Xu، نويسنده , , Qingyu and Zheng، نويسنده , , Xiaohong and Wen، نويسنده , , Zheng and Yang، نويسنده , , Yi and Wu، نويسنده , , Di and Xu، نويسنده , , Mingxiang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Abstract :
Porous BiFeO3 has been prepared using cotton templates. Strongly enhanced ferromagnetism with saturate magnetization of 3 emu/g at 300 K has been observed. An energy band gap of 2.21 eV was determined from the UV–visible diffuse reflectance spectrum. The Raman and X-ray photoelectron spectroscopy measurements indicate the existence of Fe2+ and the suppression of the oxygen octahedral tilts. The enhanced ferromagnetism has been attributed to the enhanced double exchange interaction with increased angle of Fe2 +–O–Fe3 +.
Keywords :
A. Magnetic ordered materials , B. Chemical synthesis , D. Exchange and superexchange , A. Ferroelectrics
Journal title :
Solid State Communications
Journal title :
Solid State Communications
