Abstract
An approximate scheme determining basic parameters of the electronic spectral density in the s-d model of ferromagnetic semiconductors is suggested which well interpolates between the low and high temperature régimes. The method is based on fitting the lowest momenta of the spectral density and yields no exceptional behaviour of the electronic spectrum at the Curie temperature.
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References
Nagaev E. L., phys. stat. sol. (b)65 (1974), 11.
Nagaev E. L., Usp. Fiz. Nauk117 (1975), 437.
Aldea A., Teleman E., J. Phys. C: Solid St. Phys.7 (1974), 1491.
Krisement O., J. Magn. and Magn. Materials3 (1976), 7.
Kubo K., J. Phys. Soc. Jap.36 (1974), 32.
Rangette A., Yanase A., Kübler J., Sol. St. Com.12 (1973), 171.
Rangette A., phys. stat. sol. (b)71 (1975), 569.
Nagaev E. L., Zilbervarg V. E., Fiz. Tverd. Tela17 (1975), 1261.
Balberg I., Maman A., Phys. Rev.B16 (1977), 4535.
Grigin A. P., Nagaev E. L., phys. stat. sol. (b)61 (1974), 65.
Haas C., Phys. Rev.168 (1968), 531.
Rys F., Helman J. S., Baltensperger W., Phys. kond. Materie6 (1967), 105.
Čápek V., phys. stat. sol. (b)81 (1977), 571.
Kalashnikov O. K., Fradkin E. S., phys. stat. sol. (b)59 (1973), 9.
Nolting W., phys. stat. sol. (b)79 (1977), 573.
Zubarev D. N., Usp. Fiz. Nauk71 (1960), 71.
Richmond P., J. Phys. C: Solid St. Physics3 (1970), 2402.
Čápek V., Czech. J. Phys. B27 (1977), 686.
Izyumov Yu. A., Medvedev M. V., ZETP59 (1970), 553.
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Barvík, I., Čápek, V. Electronic spectra in the s-d model of ferromagnetic semiconductors using the method of moments. Czech J Phys 29, 1136–1148 (1979). https://doi.org/10.1007/BF01596112
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DOI: https://doi.org/10.1007/BF01596112