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Site-specific atomi...
Site-specific atomic order and band structure tailoring in the diluted magnetic semiconductor (In,Ga,Mn)As
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- Medjanik, K. (author)
- Johannes Gutenberg Univ Mainz, Germany
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- Fedchenko, O. (author)
- Johannes Gutenberg Univ Mainz, Germany
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- Yastrubchak, O. (author)
- Natl Acad Sci Ukraine, Ukraine;Ternopil Ivan Puluj Natl Tech Univ, Ukraine
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- Sadowski, Janusz (author)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE),Polish Acad Sci, Poland
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- Sawicki, M. (author)
- Polish Acad Sci, Poland
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- Gluba, L. (author)
- Polish Acad Sci, Poland;Maria Curie Sklodowska Univ Lublin, Poland
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- Vasilyev, D. (author)
- Johannes Gutenberg Univ Mainz, Germany
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- Babenkov, S. (author)
- Johannes Gutenberg Univ Mainz, Germany
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- Chernov, S. (author)
- Johannes Gutenberg Univ Mainz, Germany
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- Winkelmann, A. (author)
- AGH Univ Sci & Technol, Poland
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- Elmers, H. J. (author)
- Johannes Gutenberg Univ Mainz, Germany
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- Schoenhense, G. (author)
- Johannes Gutenberg Univ Mainz, Germany
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(creator_code:org_t)
- American Physical Society, 2021
- 2021
- English.
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In: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 103:7
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Diluted ferromagnetic semiconductors combining ferromagnetic and semiconducting properties in one material provide numerous new functionalities, attractive for basic studies and potentially useful for novel device applications. The tailoring of the electronic structure in analogy to conventional semiconductors has yet to be explored. Here, we demonstrate the conservation of broken inversion symmetry and band structure tailoring for high-quality molecular-beam-epitaxy-grown (In,Ga,Mn)As films with 3% In plus 2.5% or 5.6% Mn using hard-x-ray photoelectron diffraction (hXPD) and momentum microscopy. Photon energies of 3-5 keV ensure that the results are not corrupted by surface effects, which are known to be strong in semiconductors. The missing inversion center of the GaAs host lattice leads to fingerprint-like hXPD signatures of As and Ga sites. For both concentrations, Mn predominantly occupies Ga substitutional sites. Momentum microscopy reveals a shift of the chemical potential with increasing Mn doping and a highly dispersing band, crossing the Fermi level for high Mn concentration. The Mn doping induces a pronounced modification of the spin-orbit split-off band.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Medjanik, K.
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Fedchenko, O.
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Yastrubchak, O.
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Sadowski, Janusz
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Sawicki, M.
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Gluba, L.
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show more...
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Vasilyev, D.
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Babenkov, S.
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Chernov, S.
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Winkelmann, A.
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Elmers, H. J.
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Schoenhense, G.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physical Review ...
- By the university
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Linnaeus University