两电极电化学沉积法制备FePt薄膜  

FePt films prepared by a two-pole electrodeposited method

作　　者：杜雪岩[1] 杜春岭[1] 李翠霞[1] 郭海霞[1] 耿丽萍[1] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050

出　　处：《应用化工》2010年第2期195-197,共3页Applied Chemical Industry

基　　金：甘肃省中青年自然科学基金(3YS061-A25-025);兰州理工大学科研发展基金(SB01200602)

摘　　要：采用电化学沉积法制备FePt薄膜。将氯铂酸、氯化亚铁按一定比例混合成溶液100 mL,调pH值为2.5,倒入三口烧瓶中,调节脉冲电源参数制备FePt薄膜,并通过XRD、SEM、VSM等研究薄膜的微观结构以及宏观磁性能。XRD分析表明,所制备的FePt薄膜具有面心立方(fcc)结构,在550℃热处理后转变为面心四方(fct)结构;SEM观察显示,薄膜表面颗粒呈类球形,其厚度约为5μm;VSM测试表明,所制备的FePt薄膜矫顽力趋近于0,呈现超顺磁性,热处理后其矫顽力为150 Oe,饱和磁化强度为30.78 emu/cm3。FePt films were prepared by an electrodeposited method. H2PtCl6 and FeCl2 were proportional mixed to solution 100 mL, and poured into the flask with the pH value of 2.5, and adjusted the pulse power for preparation of FePt films. The microscopic structure and macro magnetic were researched by XRD, SEM, VSM. The results of XRD confirmed that the FePt films were fee structure, and transformed into fct structure after annealed at 550 ℃. It can be seen from SEM images that thickness of FePt film was about 5 μm,and built by many spherical particles. VSM investigations indicated that the coercivity of the assynthesized FePt film was near zero, implying superparamagnetie properties, and its coereivity was about 150 Oe and saturation magnetization is 30.78 emu/cm3 after the heat-treatment.

关 键 词：电化学沉积 FePt薄膜 磁性能 

分 类 号：TB383[一般工业技术—材料科学与工程]