Crystal Structure and Magnetooptical Properties of Cd 1− x  Mn  x  Te with High Mn Concentrations | Zendy

Babonas G. | Zendy; Galazka R. R. | Zendy; Pukinskas G. | Zendy; Šileika A. | Zendy

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Crystal Structure and Magnetooptical Properties of Cd 1− x Mn x Te with High Mn Concentrations

Author(s) -

Babonas G.,

Galazka R. R.,

Pukinskas G.,

Šileika A.

Publication year - 1989

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221540140

Subject(s) - faraday effect , magnetic circular dichroism , antiferromagnetism , absorption edge , crystal (programming language) , condensed matter physics , materials science , birefringence , anisotropy , crystallography , ion , exciton , spins , chemistry , optics , physics , band gap , magnetic field , spectral line , organic chemistry , quantum mechanics , astronomy , computer science , programming language

Cd 1− x Mn x Te crystals with compositions 0.1 < x < 0.7 are studied. It is observed that in Mnconcentrated crystals ( x = 0.40, 0.64) are structural peculiarities which cause extra reflections in the Laue and Debye‐Sherrer patterns and the optical anisotropy of those samples. In Cd 1− x Mn x Te samples with x = 0.64 the effective birefringence is 4.2 × 10 −3 and the splitting of the exciton peak is equal 0.7 meV. The dispersion of the Faraday rotation at 300 K is well described by a single‐oscillator approximation for all the investigated Cd 1− x Mn x Te crystals. In the region of the absorption edge of highly Mn‐concentrated crystals the magnetic circular dichrosism specta have additional contribution which can be related with an excitation of Mn 2+ ions. In these crystals the temperature dependennce of magnetic circular dichroism in reflectance shows some peculiarities which are interpreted by the influence of antiferromagnetic interaction between the Mn 2+ spins.

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