Magnetic and luminescent properties of manganese-doped ZnSe crystals Article

Sirkeli, VP, Nedeoglo, DD, Nedeoglo, ND et al. (2012). Magnetic and luminescent properties of manganese-doped ZnSe crystals . Physica B: Condensed Matter, 407(18), 3802-3807. 10.1016/j.physb.2012.05.064

cited authors

  • Sirkeli, VP; Nedeoglo, DD; Nedeoglo, ND; Radevici, IV; Sobolevskaia, RL; Sushkevich, KD; Lähderanta, E; Lashkul, AV; Laiho, R; Biethan, JP; Yilmazoglu, O; Pavlidis, D; Hartnagel, HL

abstract

  • Magnetic and photoluminescent properties of manganese-doped ZnSe crystals with different impurity concentrations were investigated. The concentration of Mn 2 ions in ZnSe crystals has been varied from 0.01 to 0.3 at%. Magnetic and photoluminescent studies have confirmed the introduction of Mn in ZnSe crystals. It was established that Mn 2 ions are responsible for the emission bands with maximum at 616 nm and 633 nm, which correspond to 4T 2→ 6A 1 and 4T 1→ 6A 1 intracentre transitions of Mn 2 ions respectively. It was found that the concentration quenching of the photoluminescent bands is associated with Mn 2 ions, which are due to the formation of Mn-Mn clusters. Magnetic properties studies have shown that at high doping levels the manganese atoms form Mn-Mn clusters in ZnSe. From the temperature dependence of magnetic susceptibility of ZnSe:Mn crystals that follows the Curie-Weiss law, it was possible to estimate the Curie-Weiss temperature Θ(x) and the effective Mn-Mn antiferromagnetic exchange constant (J 1). © 2012 Elsevier B.V. All rights reserved.

authors

publication date

  • September 15, 2012

published in

Digital Object Identifier (DOI)

start page

  • 3802

end page

  • 3807

volume

  • 407

issue

  • 18