Multiferroic;
Chemical Vapor Deposition;
Bismuth Iron Oxide;
Metallorganic Precursor;
Electrostatic Force Microscopy;
Ferroelectric;
Antiferromagnetic;
CHEMICAL-VAPOR-DEPOSITION;
MOCVD;
PRECURSORS;
D O I:
10.1166/jnn.2010.2598
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
We report the metalorganic chemical vapor deposition of crystalline BiFeO3 films on platinized silicon substrates using n-butylferrocene, triphenylbismuth and oxygen. Based on thermogravimetric analysis data, the suitability of these two precursors for depositing BiFeO3 is discussed. The deposited films were characterized for structure and morphology using X-ray diffraction and scanning electron microscopy. Composition analysis using X-ray photoelectron spectroscopy revealed that the films were stoichiometric BiFeO3. Electrostatic force microscopy indicated that the film had polarizable domains that showed no deterioration in polarization over time long after electric poling. The film showed a saturation magnetization of 10 +/- 1 emu/cm(3) at room temperature.
机构:
Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
Yang, Kun-Gan
Yang, Sheng-Hong
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机构:
Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
Yang, Sheng-Hong
Zhang, Yue-Li
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机构:
Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R ChinaSun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
机构:Tsinghua Univ, State Key Lab New Ceram & Fine Progressing, Beijing 100084, Peoples R China
Wang, Yao
Nan, Ce-Wen
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机构:
Tsinghua Univ, State Key Lab New Ceram & Fine Progressing, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Progressing, Beijing 100084, Peoples R China