Magnetic and electrical characterizations of half-metallic Fe3O4 nanowires

被引:99
作者
Chang, Mu-Tung
Chou, Li-Jen [1 ]
Hsieh, Chin-Hua
Chueh, Yu-Lun
Wang, Zhong Lin
Murakami, Yasukazu
Shindo, Daisuke
机构
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
关键词
D O I
10.1002/adma.200602330
中图分类号
O6 [化学];
学科分类号
0703 [化学];
摘要
The magnetic properties of magnetite (Fe3O4) nanowires are investigated by means of electron holography, which deduces the magnetic information from the phase shift of electrons. The magnetic flux is parallel to the longitudinal axis of the nanowires (see figure). Observations on the magnetization distribution reveal the possibility of regulating the spin current with the half-metallic nanowires, owing to the controlled magnetization distribution in the 1D form.
引用
收藏
页码:2290 / +
页数:6
相关论文
共 29 条
[1]
GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].
BAIBICH, MN ;
BROTO, JM ;
FERT, A ;
VANDAU, FN ;
PETROFF, F ;
EITENNE, P ;
CREUZET, G ;
FRIEDERICH, A ;
CHAZELAS, J .
PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475
[2]
CHOPRA KL, 1969, THIN FILM PHENOMENA, P345
[3]
Systematic study of the growth of aligned arrays of α-Fe2O3 and Fe3O4 nanowires by a vapor-solid process [J].
Chueh, Yu-Lun ;
Lai, Ming-Wei ;
Liang, Jia-Qi ;
Chou, Li-Jen ;
Wang, Zhong Lin .
ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (17) :2243-2251
[4]
Magnetoresistance of magnetite [J].
Coey, JMD ;
Berkowitz, AE ;
Balcells, L ;
Putris, FF ;
Parker, FT .
APPLIED PHYSICS LETTERS, 1998, 72 (06) :734-736
[5]
Origin of the increased resistivity in epitaxial Fe3O4 films -: art. no. 201101 [J].
Eerenstein, W ;
Palstra, TTM ;
Hibma, T ;
Celotto, S .
PHYSICAL REVIEW B, 2002, 66 (20) :1-4
[6]
The conductivity of thin metallic films according to the electron theory of metals [J].
Fuchs, K .
PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, 1938, 34 :100-108
[7]
Magnetoresistance and magnetic properties of epitaxial magnetite thin films [J].
Gong, GQ ;
Gupta, A ;
Xiao, G ;
Qian, W ;
Dravid, VP .
PHYSICAL REVIEW B, 1997, 56 (09) :5096-5099
[8]
Enhanced intergrain tunneling magnetoresistance in half-metallic CrO2 films [J].
Hwang, HY ;
Cheong, SW .
SCIENCE, 1997, 278 (5343) :1607-1609
[9]
Fabrication and magnetoresistance of tunnel junctions using half-metallic Fe3O4 [J].
Kim, W ;
Kawaguchi, K ;
Koshizaki, N ;
Sohma, M ;
Matsumoto, T .
JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :8032-8034
[10]
Transport and magnetic properties of epitaxial and polycrystalline magnetite thin films [J].
Li, XW ;
Gupta, A ;
Xiao, G ;
Gong, GQ .
JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) :7049-7051