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Determining Curie temperature of (Ga,Mn)As samples based on electrical transport measurements: Low Curie temperature case.

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Author

  • Adam Kwiatkowski
  • Marta Gryglas-Borysiewicz
  • Piotr Juszynski
  • Jacek Przybytek
  • Maciej Sawicki
  • Janusz Sadowski
  • Dariusz Wasik
  • Michal Baj

Summary, in English

In this paper, we show that the widely accepted method of the determination of Curie temperature (Tc) in (Ga,Mn)As samples, based on the position of the peak in the temperature derivative of the resistivity, completely fails in the case of non-metallic and low-TC unannealed samples. In this case, we propose an alternative method, also based on electric transport measurements, which exploits temperature dependence of the second derivative of the resistivity upon magnetic field.

Department/s

Publishing year

2016-06-14

Language

English

Pages

1-4

Publication/Series

Applied Physics Letters

Volume

108

Issue

24

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Natural Sciences

Keywords

  • dilute ferromagnetic semiconductors, molecular beam epitaxy

Status

Published

ISBN/ISSN/Other

  • ISSN: 0003-6951