Abstract: The multiferroic BiFeO3 (BiFe1-xNixO3, x=0, 0.05, 0.10, and 0.15) films have been prepared on silicon substrates by the sol-gel method. The effects of Ni on BiFeO3 crystal structure, surface morphology, optical properties and magnetic properties were investigated. X-ray diffraction spectra indicated that Ni substitution changed the crystal structure of the BiFe1-xNixO3 system from rhombohedral to tetragonal phase. Scanning electron microscopy (SEM) showed that Ni doping can improve the crystallinity of BiFe1-xNixO3 films. Raman spectra revealed that pure BFO have strong vibration peaks. However, with the increase of Ni doping, the Raman peaks was redshifted. The result indicated that Ni doping reduced the distance between Bi-O atoms in BiFeO3 thin films. Compared with BiFeO3 film, the saturation magnetization (Ms) of BiFe1-x-NixO3 (x=0.05, 0.1 and 0.15) films was significantly enhanced, which indicated that the increase of Ni content inducing more structure distortion and thus suppressing cycloid spin structure in BiFe1-xNixO3 films. Our result may provide potential applications in information storage.
作者简介: 古丽妮尕尔·阿卜来提,2016年6月毕业于新疆大学,获得理学学士学位。现为新疆大学读硕士研究生,在买买提热夏提·买买提副教授的指导下进行研究。目前主要研究方向为材料物理。买买提热夏提·买买提,新疆大学物理科学与技术学院副教授、硕士研究生导师。1998年7月、2002年7月先后本科、硕士毕业于新疆大学物理系,2012年3月在日本东京工业大学应用物理与微电子学专业取得博士学位,回国后至今一直工作在新疆大学,自2017年9月至2018年7月访问浙江大学物理系。主要从事材料物理和凝聚态物理研究工作。近年来,在微电子学与材料物理领域发表论文20余篇,包括Microelectronics and Reliability、Vacuum、Semiconductor Science and Technology、Superlattices and Microstructures、Solid State Communications、Applied Surface Science、Materials Letters 等。mmrishat@163.com
引用本文:
古丽妮尕尔·阿卜来提, 麦合木提·麦麦提, 阿比迪古丽·萨拉木, 买买提热夏提·买买提, 吴赵锋, 孙言飞. Ni 掺杂对BiFeO3薄膜晶体结构和磁性的影响[J]. 材料导报, 2019, 33(z1): 108-111.
ABLAT Gulnigar, MAIMAITI Maihemuti, SALAMU Abidiguli, MAMAT Mamatrishat, WU Zhaofeng, SUN Yanfei. Effect of Ni Doping on the Crystal Structure and Magnetic Properties of BiFeO3 Films. Materials Reports, 2019, 33(z1): 108-111.
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2019, Vol. 33 
