FORMATION OF BOUND MAGNETIC POLARONS IN CD1-XMNXTE CRYSTALS - CONTRIBUTION OF THE AVERAGE EXCHANGE FIELD AND THERMODYNAMIC FLUCTUATIONS OF THE MAGNETIZATION TO THE BINDING-ENERGY

Authors
BUKIVSKII PN GNATENKO YP ROZHKO AK SHIGILCHEV OA
Citation
Pn. Bukivskii et al., FORMATION OF BOUND MAGNETIC POLARONS IN CD1-XMNXTE CRYSTALS - CONTRIBUTION OF THE AVERAGE EXCHANGE FIELD AND THERMODYNAMIC FLUCTUATIONS OF THE MAGNETIZATION TO THE BINDING-ENERGY, Physics of the solid state, 39(3), 1997, pp. 458-465
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
39
Issue
3
Year of publication
1997
Pages
458 - 465
Database
ISI
SICI code
1063-7834(1997)39:3<458:FOBMPI>2.0.ZU;2-S
Abstract
It is shown that the temperature dependence of the binding energy of e xciton-impurity complexes in the semimagnetic semiconductors Cd1-xMnxT e (x approximate to 0.05) is described well in the donor-electron mode l with an effective characteristic magnetic-polaron energy. The contri butions of the average exchange field and of thermodynamic fluctuation s of the magnetization to the binding energy and their variation with temperature with and without a weak magnetic field (H less than or equ al to 3.5 kOe) are determined. How doping with scandium, vanadium, and cobalt effects the appearance of the magnetic-polaron in the experime ntal crystals was studied. (C) 1997 American Institute of Physics.