稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2014年
9期
884-889
,共6页
云麒%白阿立玛%赵世峰
雲麒%白阿立瑪%趙世峰
운기%백아립마%조세봉
lattice distortion%holmium%bismuth ferrite%nanofilms%rare earths
Single-phase multiferroic BiFeO3 and rare-earth metal of holmium (Ho) doped BiFeO3 nanofilms were prepared on Pt (100)/Ti/SiO2/Si wafer via solution-gelation technique. It was suggested that the lattice distortion happened with the lattice parameter ofddecreasing after doping rare-earth metal of Ho. Meanwhile, the structure of nanofilms transformed from hexahedron phase to tetragonal phase after doping Ho. The analysis on X-ray photoelectron spectroscopy (XPS) indicated that the ratio of Fe3+ cations to Fe2+ cations increased with the increase of binding energy between Fe and O and decrease of that between Bi and O after doping Ho. The present work provided an available way on enhancing multiferroic of BiFeO3 nanofilms.
