Ni doping effects in YBa_2Fe_3O_(8+w)  

作　　者：Xiaoyu GUAN Yong ZHAO Xiaoqiu JIA 

机构地区：[1]MOE Key Laboratory of Advanced Materials Technology, Southwest Jiaotong University, Chengdu 610031, China [2]Superconductor Research and Development Center, Southwest Jiaotong University, Chengdu 610031, China [3]School of Materials Science and Engineering, University of New South Wales, Sydney 2052, NSW, Australia [4]School of Traffic and Transportation, Southwest Jiaotong University, Chengdu 610031, China

出　　处：《Journal of Modern Transportation》2011年第4期247-251,共5页现代交通学报（英文版）

基　　金：supported by Funds from Center University of the Education Ministry (No. SWJTU09ZT24)

摘　　要：By doping Ni into YBa2Fe308＋w （YBFO） system, we obtained the phase YBa2Fe3-xNixO8＋w （YBFNO, x=0, 0.05, 0.10, 0.15, 0.30, 0.50, 1.00）. This paper discusses the changes in crystal structural, resistivity and magnetoresistivity （MR） of YBFO samples due to the incorporation of transition metal Ni. The results show that Ni substitution for partial Fe in YBFO does not substantially transform the structure of parent phase, but results in tiny changes in the lat- tice parameters. The YBFO crystal with Ni doped is semiconducting.By doping Ni into YBa2Fe308＋w （YBFO） system, we obtained the phase YBa2Fe3-xNixO8＋w （YBFNO, x=0, 0.05, 0.10, 0.15, 0.30, 0.50, 1.00）. This paper discusses the changes in crystal structural, resistivity and magnetoresistivity （MR） of YBFO samples due to the incorporation of transition metal Ni. The results show that Ni substitution for partial Fe in YBFO does not substantially transform the structure of parent phase, but results in tiny changes in the lat- tice parameters. The YBFO crystal with Ni doped is semiconducting.

关 键 词：YBa2Fe3Oa＋w Ni doping crystal structure MAGNETORESISTIVITY 

分 类 号：TB383[一般工业技术—材料科学与工程] TB381