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A New Route toward Semiconductor Nanospintronics : Highly Mn-Doped GaAs Nanowires Realized by Ion-Implantation under Dynamic Annealing Conditions
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- Borschel, Christian (author)
- Institute for Solid State Physics, Jena University, Max-Wien-Platz 1, 07743 Jena, Germany
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- Canali, Carlo M. (author)
- Lund University,Lunds universitet,Linnéuniversitetet,Institutionen för datavetenskap, fysik och matematik, DFM,Avd. f. Fasta tillståndets fysik, Lunds Universitet,Nanometerkonsortiet,Högskolan i Kalmar,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Borgström, Magnus (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Paschoal, Waldomiro, 1977- (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Wallentin, Jesper (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Kumar, Sandeep (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Mergenthaler, Kilian (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Deppert, Knut (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Canali, C. M. (author)
- Högskolan i Kalmar
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- Pettersson, Håkan, 1962- (author)
- Högskolan i Halmstad,Tillämpad matematik och fysik (MPE-lab),Nanovetenskap,Halmstad University
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- Samuelson, Lars (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Ronning, Carsten (author)
- Institute for Solid State Physics, Jena University, Max-Wien-Platz 1, 07743 Jena, Germany
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(creator_code:org_t)
- 2011-08-22
- 2011
- English.
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In: Nano letters (Print). - Washington : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 11:9, s. 3935-3940
- Related links:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://lup.lub.lu.s...
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Abstract
Subject headings
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- We report on highly Mn-doped GaAs nanowires (NWs) of high crystalline quality fabricated by ion beam implantation, a technique that allows doping concentrations beyond the equilibrium solubility limit. We studied two approaches for the preparation of Mn-doped GaAs NWs: First, ion implantation at room temperature with subsequent annealing resulted in polycrystalline NWs and phase segregation of MnAs and GaAs. The second approach was ion implantation at elevated temperatures. In this case, the single-crystallinity of the GaAs NWs was maintained, and crystalline, highly Mn-doped GaAs NWs were obtained. The electrical resistance of such NWs dropped with increasing temperature (activation energy about 70 meV). Corresponding magnetoresistance measurements showed a decrease at low temperatures, indicating paramagnetism. Our findings suggest possibilities for future applications where dense arrays of GaMnAs nanowires may be used as a new kind of magnetic material system.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
Keyword
- DMS
- doping
- dynamic annealing
- GaAs
- GaMnAs
- ion-implantation
- Nanospintronics
- Nanowires
- Condensed Matter Physics
- Nanowires
- GaAs
- doping
- DMS
- ion implantation
- dynamic annealing
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Borschel, Christ ...
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Canali, Carlo M.
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Borgström, Magnu ...
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Paschoal, Waldom ...
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Wallentin, Jespe ...
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Kumar, Sandeep
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Mergenthaler, Ki ...
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Deppert, Knut
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Canali, C. M.
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Pettersson, Håka ...
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Samuelson, Lars
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Ronning, Carsten
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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 ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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and Nano technology
- Articles in the publication
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Nano letters (Pr ...
- By the university
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Halmstad University
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Linnaeus University
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Lund University