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:
Acad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R ChinaAcad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
Tang, Xianwu
Dai, Jianming
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机构:
Acad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R ChinaAcad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
Dai, Jianming
Zhu, Xuebin
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机构:
Acad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R ChinaAcad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
Zhu, Xuebin
Sun, Yuping
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机构:
Acad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R ChinaAcad Sinica, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
机构:
Univ Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USA
Pham, Calvin D.
Chang, Jeffrey
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机构:
Univ Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USA
Chang, Jeffrey
Zurbuchen, Mark A.
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机构:
Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USA
Zurbuchen, Mark A.
Chang, Jane P.
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机构:
Univ Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Biomol & Chem Engn, Los Angeles, CA 90095 USA