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Galvanomagnetic and magnetic properties of pb1-yscyte

  • E. P. Skipetrov
  • , M. M. Markina
  • , K. V. Zakharov
  • , L. A. Skipetrova
  • , A. A. Solovev
  • , A. V. Knotko
  • , E. I. Slynko
  • , V. E. Slynko
  • Lomonosov Moscow State University
  • NASU - Institute for Problems of Materials Science

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The galvanomagnetic properties in weak magnetic fields (4.2≤T≤300 K, B≤0.07 T) as well as magnetic properties (2≤T≤300 K, B≤9 T) of the single-crystal Pb1-yScyTe (y≤0.02) alloys have been investigated. We find that an increase of Sc impurity content leads to a monotonous growth of the free electron concentration (from 1016 cm-3 to 1020 cm-3). In heavily doped alloys (y>0.01), it tends to saturation, indicating the pinning of the Fermi energy by the scandium resonant level located inside the conduction band. The energy of the level is estimated (ESc≈Ec+280 meV) and the model of electronic structure rearrangement of Pb1-yScyTe alloys with doping is proposed. In the frame of this model, using experimental temperature and magnetic field dependences of magnetization, the concentrations of magnetically active scandium ions are determined and connection of the electronic structure with the magnetic properties of the alloys are discussed.

Original languageEnglish
Title of host publicationSolid State Phenomena
EditorsNikolai Perov, Anna Semisalova
PublisherTrans Tech Publications Ltd
Pages97-100
Number of pages4
ISBN (Print)9783038354826
DOIs
StatePublished - 2015
Externally publishedYes
Event6th Moscow International Symposium on Magnetism, MISM 2014 - Moscow, Russian Federation
Duration: Jun 29 2014Jul 3 2014

Publication series

NameSolid State Phenomena
Volume233-234
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference6th Moscow International Symposium on Magnetism, MISM 2014
Country/TerritoryRussian Federation
CityMoscow
Period06/29/1407/3/14

Keywords

  • Electronic structure
  • Fermi level pinning
  • Galvanomagnetic and magnetic properties
  • Lead telluride-based alloys
  • Scandium resonant level
  • Transition metal impurities

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