Single-Crystalline Ferromagnetic Alloy Semiconductor Ge1-xMnx Grown on Ge(111)

被引：7
作者：
Yada, Shinsuke [1 ]
Okazaki, Ryohei [1 ]
Ohya, Shinobu [1 ]
Tanaka, Masaaki [1 ]
机构：
[1] Univ Tokyo, Dept Elect Engn & Informat Syst, Bunkyo Ku, Tokyo 1138656, Japan
来源：
APPLIED PHYSICS EXPRESS | 2010年 / 3卷 / 12期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
D O I：
10.1143/APEX.3.123002
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the structural and magnetic properties of Ge1-xMnx films grown on Ge(111) substrates. The Ge1-xMnx films prepared with appropriate epitaxial growth conditions are diamond-type single crystals with a homogeneous Mn distribution. Magnetic circular dichroism (MCD) spectra exhibit enhanced peaks at the critical point energy E-1 of Ge, with single-phase ferromagnetism. The MCD characteristics are consistent with magnetization data, and the Curie temperature increases with the Mn content x. These results indicate that the Ge1-xMnx films grown on Ge(111) are intrinsic ferromagnetic alloy semiconductors. (C) 2010 The Japan Society of Applied Physics
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页数：3
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共 28 条
  • [1] Ferromagnetic Ge(Mn) nanostructures
    Ahlers, S.
    Bougeard, D.
    Riedl, H.
    Abstreiter, G.
    Trampert, A.
    Kipferl, W.
    Sperl, M.
    Bergmaier, A.
    Dollinger, G.
    [J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2006, 32 (1-2) : 422 - 425
  • [2] Structural and magnetic properties of Mn5Ge3 clusters in a dilute magnetic germanium matrix
    Bihler, C
    Jaeger, C
    Vallaitis, T
    Gjukic, M
    Brandt, MS
    Pippel, E
    Woltersdorf, J
    Gösele, U
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (11)
  • [3] Electrical field control magnetic phase transition in nanostructured MnxGe1-x
    Chen, Jingjing
    Wang, Kang L.
    Galatsis, Kosmas
    [J]. APPLIED PHYSICS LETTERS, 2007, 90 (01)
  • [4] Ferromagnetism in Mn-doped Ge
    Cho, SG
    Choi, S
    Hong, SC
    Kim, Y
    Ketterson, JB
    Kim, BJ
    Kim, YC
    Jung, JH
    [J]. PHYSICAL REVIEW B, 2002, 66 (03) : 333031 - 333033
  • [5] Structure and magnetism of self-organized Ge1-xMnx nanocolumns on Ge(001)
    Devillers, T.
    Jamet, M.
    Barski, A.
    Poydenot, V.
    Bayle-Guillemaud, P.
    Bellet-Amalric, E.
    Cherifi, S.
    Cibert, J.
    [J]. PHYSICAL REVIEW B, 2007, 76 (20)
  • [6] Spinodal decomposition under layer by layer growth condition and high curie temperature quasi-one-dimensional nano-structure in dilute magnetic semiconductors
    Fukushima, Tetsuya
    Sato, Kazunori
    Katayama-Yoshida, Hiroshi
    Dederichs, Peter H.
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2006, 45 (12-16): : L416 - L418
  • [7] Magnetization of epitaxial MnGe alloys on Ge(111) substrates
    Gunnella, R
    Morresi, L
    Pinto, N
    Murri, R
    Ottaviano, L
    Passacantando, M
    D'Orazio, F
    Lucari, F
    [J]. SURFACE SCIENCE, 2005, 577 (01) : 22 - 30
  • [8] Diffuse x-ray scattering from inclusions in ferromagnetic Ge1-xMnx layers
    Holy, V.
    Lechner, R. T.
    Ahlers, S.
    Horÿk, L.
    Metzger, T. H.
    Navarro-Quezada, A.
    Trampert, A.
    Bougeard, D.
    Bauer, G.
    [J]. PHYSICAL REVIEW B, 2008, 78 (14):
  • [9] High-Curie-temperature ferromagnetism in self-organized Ge1-xMnx nanocolumns
    Jamet, Matthieu
    Barski, Andre
    Devillers, Thibaut
    Poydenot, Valier
    Dujardin, Romain
    Bayle-Guillemaud, Pascale
    Rothman, Johan
    Bellet-Amalric, Edith
    Marty, Alain
    Cibert, Joel
    Mattana, Richard
    Tatarenko, Serge
    [J]. NATURE MATERIALS, 2006, 5 (08) : 653 - 659
  • [10] Spatial chemical inhomogeneity and local electronic structure of Mn-doped Ge ferromagnetic semiconductors
    Kang, JS
    Kim, G
    Wi, SC
    Lee, SS
    Choi, S
    Cho, S
    Han, SW
    Kim, KH
    Song, HJ
    Shin, HJ
    Sekiyama, A
    Kasai, S
    Suga, S
    Min, BI
    [J]. PHYSICAL REVIEW LETTERS, 2005, 94 (14)
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