Narrow-gap semimagnetic semiconductors

Details Narrow-gap semimagnetic semiconductors Narrow-gap semimagnetic semiconductors

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985svphu.146...35l&link_type=abstract

(Uspekhi Fizicheskikh Nauk, vol. 146, May 1985, p. 35-72) Soviet Physics - Uspekhi (ISSN 0038-5670), vol. 28, May 1985, p. 349-3

Physics

Optics

Energy Gaps (Solid State), Magnetic Materials, Manganese Compounds, Mercury Tellurides, Semiconductors (Materials), Energy Spectra, Magnetic Properties, Magneto-Optics, Paramagnetism

Scientific paper

The results of experimental investigations of gapless and narrow-gap semimagnetic semiconductors are reviewed. Consideration is given to the main features of gapless and narrow-band SMS containing atoms of transition elements with unfilled d-shells. The physical characteristics of the three main SMS materials mercury chalcogenide, manganese, and europium, are described, with emphasis given to the physical mechanisms for the formation of a spin-glass phase when the concentration of a transition element is low; the manifestation of thermal oscillations at low temperature; and the effect of magnetic excitations on the galvanomagnetic and magnetooptical properties of SMS materials when the concentration of the transition element is greater than 10-15 percent.

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