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

Research output: Contribution to journalArticle

Abstract

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.

Details

Authors
  • Adam Kwiatkowski
  • Marta Gryglas-Borysiewicz
  • Piotr Juszynski
  • Jacek Przybytek
  • Maciej Sawicki
  • Janusz Sadowski
  • Dariusz Wasik
  • Michal Baj
Organisations
External organisations
  • University of Warsaw
  • Polish Academy of Sciences
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Natural Sciences

Keywords

  • dilute ferromagnetic semiconductors, molecular beam epitaxy
Original languageEnglish
Article number242103
Pages (from-to)1-4
Number of pages4
JournalApplied Physics Letters
Volume108
Issue number24
Publication statusPublished - 2016 Jun 14
Publication categoryResearch
Peer-reviewedYes