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  • Borschel, ChristianInstitute for Solid State Physics, Jena University, Max-Wien-Platz 1, 07743 Jena, Germany (author)

A New Route toward Semiconductor Nanospintronics : Highly Mn-Doped GaAs Nanowires Realized by Ion-Implantation under Dynamic Annealing Conditions

  • Article/chapterEnglish2011

Publisher, publication year, extent ...

  • 2011-08-22
  • Washington :American Chemical Society (ACS),2011
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:hh-16458
  • https://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-16458URI
  • https://doi.org/10.1021/nl2021653DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-18463URI
  • https://lup.lub.lu.se/record/2179336URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • 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 and genre

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  • Canali, Carlo M.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(Swepub:lu)ftf-mmi (author)
  • Borgström, MagnusLund 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(Swepub:lu)ftf-mbo (author)
  • Paschoal, Waldomiro,1977-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(Swepub:lu)ftf-wdp (author)
  • Wallentin, JesperLund 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(Swepub:lu)ftf-jwa (author)
  • Kumar, SandeepLund 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(Swepub:lu)nucl-ska (author)
  • Mergenthaler, KilianLund 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(Swepub:lu)ftf-kim (author)
  • Deppert, KnutLund 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(Swepub:lu)ftf-kde (author)
  • Canali, C. M.Högskolan i Kalmar (author)
  • Pettersson, Håkan,1962-Högskolan i Halmstad,Tillämpad matematik och fysik (MPE-lab),Nanovetenskap,Halmstad University(Swepub:hh)hape (author)
  • Samuelson, LarsLund 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(Swepub:lu)ftf-lsa (author)
  • Ronning, CarstenInstitute for Solid State Physics, Jena University, Max-Wien-Platz 1, 07743 Jena, Germany (author)
  • Institute for Solid State Physics, Jena University, Max-Wien-Platz 1, 07743 Jena, GermanyInstitutionen för datavetenskap, fysik och matematik, DFM (creator_code:org_t)

Related titles

  • In:Nano letters (Print)Washington : American Chemical Society (ACS)11:9, s. 3935-39401530-69841530-6992

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