Single-crystalline diluted magnetic semiconductor GaN:Mn nanowires

被引:174
作者
Choi, HJ [1 ]
Seong, HK
Chang, J
Lee, KI
Park, YJ
Kim, JJ
Lee, SK
He, RR
Kuykendall, T
Yang, PD
机构
[1] Yonsei Univ, Sch Adv Mat Sci & Engn, Seoul 120749, South Korea
[2] Univ Calif Berkeley, Dept Chem, Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA
[3] Korea Inst Sci & Technol, Future Technol Res Div, Seoul 136791, South Korea
[4] Chonbuk Natl Univ, Dept Phys, Chonju 561756, South Korea
[5] Chonbuk Natl Univ, Dept Semicond Sci & Technol, Chonju 561756, South Korea
关键词
D O I
10.1002/adma.200401706
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Current information technology relies on two independent processes: charge-based information processing (microprocessors) and spin-based data storage (magnetic hard drives).([1-5]) The prospect of simultaneously manipulating both charge and spin in a single semiconductor medium is provided by the exciting area of spintronics. Among many others, diluted magnetic semiconductors (DMSs) represent the most promising candidates for such applications. ([1-7]) Herein we report on the magneto- and optoelectronic properties of single-crystalline diluted magnetic semiconductor nanowires Ga1-xMnxN (x=0.01-0.09). These nanowires, which have diameters of similar to 10-100 nm and lengths of up to tens of micrometers, exhibit ferromagnetism with Curie temperatures (T(C)s) above 300 K and magnetoresistances (MRs) up to 250 K. Spin-dependent electron transport from single-nanowire transistors indicates the homogeneous nature of the ferromagnetic nanowires.
引用
收藏
页码:1351 / +
页数:7
相关论文
共 21 条
  • [1] Semiconductor spintronics
    Akinaga, H
    Ohno, H
    [J]. IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2002, 1 (01) : 19 - 31
  • [2] Self-organized GaN quantum wire UV lasers
    Choi, HJ
    Johnson, JC
    He, RR
    Lee, SK
    Kim, F
    Pauzauskie, P
    Goldberger, J
    Saykally, RJ
    Yang, PD
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (34) : 8721 - 8725
  • [3] A giant appears in spintronics
    Das Sarma, S
    [J]. NATURE MATERIALS, 2003, 2 (05) : 292 - 294
  • [4] Zener model description of ferromagnetism in zinc-blende magnetic semiconductors
    Dietl, T
    Ohno, H
    Matsukura, F
    Cibert, J
    Ferrand, D
    [J]. SCIENCE, 2000, 287 (5455) : 1019 - 1022
  • [5] Ferromagnetic semiconductors
    Dietl, T
    [J]. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2002, 17 (04) : 377 - 392
  • [6] High-Tc ferromagnetism in diluted magnetic semiconducting GaN:Mn films
    Hori, H
    Sonoda, S
    Sasaki, T
    Yamamoto, Y
    Shimizu, S
    Suga, K
    Kindo, K
    [J]. PHYSICA B-CONDENSED MATTER, 2002, 324 (1-4) : 142 - 150
  • [7] Kim HI, 2002, J CERAM PROCESS RES, V3, P82
  • [8] Magnetotransport of p-type GaMnN assisted by highly conductive precipitates
    Kim, KH
    Lee, KJ
    Kim, DJ
    Kim, HJ
    Ihm, YE
    Djayaprawira, D
    Takahashi, M
    Kim, CS
    Kim, CG
    Yoo, SH
    [J]. APPLIED PHYSICS LETTERS, 2003, 82 (11) : 1775 - 1777
  • [9] Persistent sourcing of coherent spins for multifunctional semiconductor spintronics
    Malajovich, I
    Berry, JJ
    Samarth, N
    Awschalom, DD
    [J]. NATURE, 2001, 411 (6839) : 770 - 772
  • [10] Making nonmagnetic semiconductors ferromagnetic
    Ohno, H
    [J]. SCIENCE, 1998, 281 (5379) : 951 - 956