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2008 | 114 | 5 | 1151-1157
Article title

Zn_{1-x}(Mn,Co)_xGeAs_2 Ferromagnetic Semiconductor: Magnetic and Transport Properties

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Abstracts
EN
We present the studies of magnetic and transport properties of the bulk Zn_{1-x}(Mn, Co)_xGeAs_2 mixed crystals with 0.052 ≤ x ≤0.182 grown using direct fusion method. Magnetic investigations showed that for samples with x ≥ 0.078 we observed a behavior typical of ferromagnets, with the Curie temperatures T_C ≥ 300 K. The observed ferromagnetism was probably connected with the spinodal decomposition of the Mn ions in the alloy. The transport studies including resistivity and Hall effect (at B=1.4 T) were performed. The samples showed p-type conductivity with semiconducting or metallic character, depending on the alloy composition. The Hall carrier concentration, p ≥ 10^{18} cm^{-3}, was composition dependent.
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Contributors
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Department of Physics & Center for Nanophysics and Advanced Materials, University of Maryland, College Park, MD 20742, USA
author
  • Department of Physics & Center for Nanophysics and Advanced Materials, University of Maryland, College Park, MD 20742, USA
  • Kurnakov Institute of General and Inorganic Chemistry RAS, 119991 Moscow, Russia
author
  • Kurnakov Institute of General and Inorganic Chemistry RAS, 119991 Moscow, Russia
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n523kz
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