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Melt growth of pure and Mn2+ -doped KPb2Cl5 single crystals

C. NEAMTU1,* , AL. DARABONT1

Affiliation

  1. National Institute for R&D of Isotopic and Molecular Technologies, 65-103 Donath Street, POB 700, 400293 Cluj-Napoca, Romania

Abstract

Single crystals of KPb2Cl5 were grown by vertical Bridgman method, in sealed quartz ampoules, starting from KCl and PbCl2 previously purified and synthesized in single crystalline form. KCl single crystals were obtained using the Czochralski technique. PbCl2 single crystals were grown by the Bridgman method, in sealed ampoules, under chlorinating atmosphere. The resulted KPb2Cl5 single crystals, up to 3 cm long and 1.5 cm in diameter, were of good optical quality. For the Mn2+ -doped crystals, EPR measurements indicate the presence of the paramagnetic ions in the crystalline host in one of the Pb2+ two distinct sites, namely the one with the lower crystalline symmetry..

Keywords

Lead halides, Crystal growth, Paramagnetic ions, Mn2+ in KPb2Cl5.

Submitted at: Feb. 25, 2008
Accepted at: Aug. 28, 2008

Citation

C. NEAMTU, AL. DARABONT, Melt growth of pure and Mn2+ -doped KPb2Cl5 single crystals, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 9, pp. 2360-2362 (2008)