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Epitaxial growth of cubic MnSb on GaAs AND InGaAs(111)
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Bell, Gavin R., Burrows, Christopher W., Hase, Thomas P. A., Ashwin, M. J., McMitchell, Sean R. C., Sanchez, Ana M. and Aldous, James D. (2014) Epitaxial growth of cubic MnSb on GaAs AND InGaAs(111). SPIN, 4 (4). pp. 1-8. 1440025. doi:10.1142/S2010324714400256
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Official URL: http://dx.doi.org/10.1142/S2010324714400256
Abstract
The cubic polymorph of the binary transition metal pnictide (TMP) MnSb, c-MnSb, has been predicted to be a robust half-metallic ferromagnetic (HMF) material with minority spin gap ≳1 eV. Here, MnSb epilayers are grown by molecular beam epitaxy (MBE) on GaAs and In0.5Ga0.5As(111) substrates and analyzed using synchrotron radiation X-ray diffraction. We find polymorphic growth of MnSb on both substrates, where c-MnSb co-exists with the ordinary niccolite n-MnSb polymorph. The grain size of the c-MnSb is of the order of tens of nanometer on both substrates and its appearance during MBE growth is independent of the very different epitaxial strain from the GaAs (3.1%) and In0.5Ga0.5As (0.31%) substrates.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
| Library of Congress Subject Headings (LCSH): | Ferromagnetism, Epitaxy, X-rays -- Diffraction | ||||||||
| Journal or Publication Title: | SPIN | ||||||||
| Publisher: | World Scientific Publishing Co. Pte. Ltd. | ||||||||
| ISSN: | 2010-3247 | ||||||||
| Official Date: | 16 October 2014 | ||||||||
| Dates: |
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| Volume: | 4 | ||||||||
| Number: | 4 | ||||||||
| Number of Pages: | 8 | ||||||||
| Page Range: | pp. 1-8 | ||||||||
| Article Number: | 1440025 | ||||||||
| DOI: | 10.1142/S2010324714400256 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), United States. Department of Energy, Diamond Light Source (Firm) | ||||||||
| Grant number: | EP/I00114X/1 (EPSRC), EP/K032852/1 (EPSRC), DE-AC02- 98CH10886 (DoE) | ||||||||
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