Heteroepitaxial Growth of Ferromagnetic MnSb(0001) Films on Ge/Si(111) Virtual Substrates.
Heteroepitaxial Growth of Ferromagnetic MnSb(0001) Films on Ge/Si(111) Virtual Substrates.
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DOI:
10.1021/cg4011136
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发表时间:
2013-11-06
影响因子:
3.8
通讯作者:
Bell, Gavin R.
中科院分区:
文献类型:
--
作者:
Burrows, Christopher W.;Dobbie, Andrew;Myronov, Maksym;Hase, Thomas P. A.;Wilkins, Stuart B.;Walker, Marc;Mudd, James J.;Maskery, Ian;Lees, Martin R.;McConville, Christopher F.;Leadley, David R.;Bell, Gavin R.
Molecular beam epitaxial growth of ferromagnetic MnSb(0001) has been achieved on high quality, fully relaxed Ge(111)/Si(111) virtual substrates grown by reduced pressure chemical vapor deposition. The epilayers were characterized using reflection high energy electron diffraction, synchrotron hard X-ray diffraction, X-ray photoemission spectroscopy, and magnetometry. The surface reconstructions, magnetic properties, crystalline quality, and strain relaxation behavior of the MnSb films are similar to those of MnSb grown on GaAs(111). In contrast to GaAs substrates, segregation of substrate atoms through the MnSb film does not occur, and alternative polymorphs of MnSb are absent. We use molecular beam epitaxy to grow ferromagnetic MnSb(0001) on Ge(111) virtual substrates on Si(111). The MnSb thin films are of high crystal quality, comparable to films grown on GaAs(111). Magnetic properties and strain relaxation are similar to films on GaAs. In contrast to MnSb-GaAs(111), alternative MnSb polymorphs and surface segregation of substrate atoms are both absent.
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通讯作者:
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