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

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.

Palotas, Krisztian (author)
Teobaldi, Gilberto (author)
Sadowski, JanuszLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-jsa (author)
Mikkelsen, AndersLund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)slju-ami (author)
Lundgren, EdvinLund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)slju-elu (author)
Lunds universitetMAX IV-laboratoriet (creator_code:org_t)

By the author/editor: Hofer, Werner A; Palotas, Kriszti ...; Teobaldi, Gilber ...; Sadowski, Janusz; Mikkelsen, Ander ...; Lundgren, Edvin

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Nano technology; and Nano technology

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