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1997 | 91 | 2 | 423-426
Article title

Quasiparticles in Calcium Doped Yttrium-Iron Garnets

Content
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Languages of publication
EN
Abstracts
EN
In yttrium-iron garnets an electrical charge is carried by quasiparticles based on compensating holes which move either at oxygen or iron ions of the tetragonal sublattice. The quasiparticles can also get localized because of their coupling to optical phonons on the iron sites. A multi-band model of holes coupled to phonons is applied to find additional energy levels in the gap between the lower of the narrow 3d bands and the wide 2p band, whose occurrence plays a crucial role in a conductivity mechanism. The density of states is considerably modified by the interaction between the holes and local distortion of the lattice.
Keywords
EN
Year
Volume
91
Issue
2
Pages
423-426
Physical description
Dates
published
1997-02
Contributors
  • Institute of Physics, A. Mickiewicz University, 60-769 Poznań, Poland
  • Institute of Physics, A. Mickiewicz University, 60-769 Poznań, Poland
author
  • Department of Physics, University of Sheffield S3 7RH, U.K.
  • Institute of Physics, A. Mickiewicz University, 60-769 Poznań, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv91z242kz
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