Soft-Chemical Synthetic Nonstoichiometric Bi2O2.33 Nanoflower: A New Room-Temperature Ferromagnetic Semiconductor

被引：52
作者：
Guan, Hangmin [1 ,2 ]
Zhang, Xiaodong [1 ]
Xie, Yi [1 ]
机构：
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Hefei Univ, Dept Chem & Mat Engn, Hefei 230062, Anhui, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 46期
基金：
中国国家自然科学基金;
关键词：
MAGNETIC SEMICONDUCTORS; HALF-METALLICITY; 1ST PRINCIPLES; OXIDES; BI2O3; FE; CO;
D O I：
10.1021/jp509045d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Bi2O2.33 nanoflowers with pure phase were directly prepared via a solvothermal route. The magnetism behavior of the product was investigated, and the data clearly revealed the room-temperature ferromagnetism of the synthetic sample. This nonstoichiometric bismuth oxide should be the diluted magnetic semiconductors (DMSs). XPS measurements showed that the room-temperature ferromagnetism might be derived from the presence of Bi2+ in the structure. The achievement of the nonstoichiometric Bi2O2.33 DMSs might pave the way for a new understanding of the underlying ferromagnetic mechanism in DMSs materials.
引用
收藏
页码：27170 / 27174
页数：5
相关论文
共 37 条
[1]   Effect of Bi2O3 on electron paramagnetic resonance, optical transmission and conductivity in vanadyl-doped Bi2O3•K2O-B2O3 glasses [J].
Agarwal, A ;
Seth, VP ;
Gahlot, PS ;
Khasa, S ;
Chand, P .
MATERIALS CHEMISTRY AND PHYSICS, 2004, 85 (01) :215-221
[2]   Origin of magnetism in undoped TiO2 nanotubes [J].
Alivov, Yahya ;
Grant, Ted ;
Capan, Cigdem ;
Iwamoto, W. ;
Pagliuso, P. G. ;
Molloi, Sabee .
NANOTECHNOLOGY, 2013, 24 (27)
[3]   Seeking room-temperature ferromagnetic semiconductors [J].
Ando, Koji .
SCIENCE, 2006, 312 (5782) :1883-1885
[4]  
Bachmann K. J., 1992, NON STOICHIOMETRY SE, P3
[5]   Charge-transfer ferromagnetism in oxide nanoparticles [J].
Coey, J. M. D. ;
Wongsaprom, Kwanruthai ;
Alaria, J. ;
Venkatesan, M. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (13)
[6]   Donor impurity band exchange in dilute ferromagnetic oxides [J].
Coey, JMD ;
Venkatesan, M ;
Fitzgerald, CB .
NATURE MATERIALS, 2005, 4 (02) :173-179
[7]   Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].
Dietl, T ;
Ohno, H ;
Matsukura, F ;
Cibert, J ;
Ferrand, D .
SCIENCE, 2000, 287 (5455) :1019-1022
[8]   Ultraviolet-Emitting Bi2O2.33 Nanosheets Prepared by Electrolytic Corrosion of Metal Bi [J].
Fang, Guoli ;
Chen, G. ;
Liu, Jinqiang ;
Wang, Xiong .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (02) :864-867
[9]   Room-temperature solution synthesis of Bi2O3 nanowires for gas sensing application [J].
Gou, Xinglong ;
Li, Rong ;
Wang, Guoxiu ;
Chen, Zhixin ;
Wexler, David .
NANOTECHNOLOGY, 2009, 20 (49)
[10]   Energy level alignment and injection barriers at spin injection contacts between La0.7Sr0.3MnO3 and organic semiconductors [J].
Grobosch, M. ;
Doerr, K. ;
Gangineni, R. B. ;
Knupfer, M. .
APPLIED PHYSICS LETTERS, 2008, 92 (02)
1234