Ferromagnetism and Magnetoresistance in La0.67Sr0.33Fe0.07Mn0.93O3期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Ferromagnetism and Magnetoresistance in La_0.67Sr_0.33Fe_0.07Mn_0.93O₃

Authors:	Ya-Dong Li Jiang-Hui Zhang Cao-Shui Xiong Hong-Wei Liao

Affiliation:	Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China;Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China;Department of Physics, University of Science and Technology, Hefei, Anhui 230026, People's Republic of China

Abstract:	A bulk ceramic sample La_0.67Sr_0.33Fe_0.07Mn_0.93O₃ (LSFMO) with a rhombohedral structure has been prepared from a coprecipitated carbonate precursor in this study. Ferromagnetism and a negative, isotropic magnetoresistance (MR) as large as 11% have been observed in a ceramic sample of LSFMO. There are two resistivity transition peaks on the resistivity versus temperature curves. The resistivity peak and MR have been related to the ferromagnetic state in LSFMO.

Keywords:	magnetic matter/properties synthesis precipitates/precipitation