Detection of spin-states in Mn-oped gallium arsenide films

Werner A Hofer; Krisztian Palotas; Gilberto Teobaldi; Janusz Sadowski; Anders Mikkelsen; Edvin Lundgren

doi:10.1088/0957-4484/18/4/044006

Detection of spin-states in Mn-oped gallium arsenide films

Werner A Hofer, Krisztian Palotas, Gilberto Teobaldi, Janusz Sadowski, Anders Mikkelsen, Edvin Lundgren

Research output: Contribution to journal › Article › peer-review

Abstract

We show that isolated magnetic dipoles centred at the position of manganese impurities in a gallium arsenide lattice lead to spin polarized states in the bandgap of the III-V semiconductor. Spectroscopy simulations with a tungsten tip agree well with experimental data; in this case, no difference can be observed for the two magnetic groundstates. But if the signal is read with a magnetic iron tip, it changes by a factor of up to 20, depending on the magnetic orientation of the Mn atom.

Original language	English
Journal	Nanotechnology
Volume	18
Issue number	4
DOIs	https://doi.org/10.1088/0957-4484/18/4/044006
Publication status	Published - 2007

Subject classification (UKÄ)

Nano-technology

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10.1088/0957-4484/18/4/044006

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title = "Detection of spin-states in Mn-oped gallium arsenide films",

abstract = "We show that isolated magnetic dipoles centred at the position of manganese impurities in a gallium arsenide lattice lead to spin polarized states in the bandgap of the III-V semiconductor. Spectroscopy simulations with a tungsten tip agree well with experimental data; in this case, no difference can be observed for the two magnetic groundstates. But if the signal is read with a magnetic iron tip, it changes by a factor of up to 20, depending on the magnetic orientation of the Mn atom.",

author = "Hofer, {Werner A} and Krisztian Palotas and Gilberto Teobaldi and Janusz Sadowski and Anders Mikkelsen and Edvin Lundgren",

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T1 - Detection of spin-states in Mn-oped gallium arsenide films

AU - Hofer, Werner A

AU - Palotas, Krisztian

AU - Teobaldi, Gilberto

AU - Sadowski, Janusz

AU - Mikkelsen, Anders

AU - Lundgren, Edvin

PY - 2007

Y1 - 2007

N2 - We show that isolated magnetic dipoles centred at the position of manganese impurities in a gallium arsenide lattice lead to spin polarized states in the bandgap of the III-V semiconductor. Spectroscopy simulations with a tungsten tip agree well with experimental data; in this case, no difference can be observed for the two magnetic groundstates. But if the signal is read with a magnetic iron tip, it changes by a factor of up to 20, depending on the magnetic orientation of the Mn atom.

AB - We show that isolated magnetic dipoles centred at the position of manganese impurities in a gallium arsenide lattice lead to spin polarized states in the bandgap of the III-V semiconductor. Spectroscopy simulations with a tungsten tip agree well with experimental data; in this case, no difference can be observed for the two magnetic groundstates. But if the signal is read with a magnetic iron tip, it changes by a factor of up to 20, depending on the magnetic orientation of the Mn atom.

U2 - 10.1088/0957-4484/18/4/044006

DO - 10.1088/0957-4484/18/4/044006

M3 - Article

SN - 0957-4484

VL - 18

JO - Nanotechnology

JF - Nanotechnology

IS - 4

ER -

Detection of spin-states in Mn-oped gallium arsenide films

Abstract

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