Article ID Journal Published Year Pages File Type
1530207 Materials Science and Engineering: B 2008 5 Pages PDF
Abstract

We report on a controlled ambient annealing technique aimed at increasing the amount of Mn incorporation in III–V semiconductors. The aim is to reduce the number of hole carrier and magnetic element compensating entities, such as Mn interstitials and anti-site defects, to increase the magnetic Curie temperature. The idea is (a) to increase the number of Group III vacancies through annealing in Group V vapor rich conditions and (b) judicious use of crystal field theory to reduce/stabilize Mn interstitials. Our experimental results constitute the highest reportedTc (∼130 K) in Mn doped InSb and Mn doped InP. The possibility of ferrimagnetism in Mn and Cr incorporated GaAs, was noted.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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