ACTA

Magnetic Susceptibility of Cd_1-xFe_xTe_1-ySe_y

M. Arciszewska^a, A. Mycielski^a, W. Dobrowolski^a, A. Lenard^a, A. Mauger^b and B. Witkowska^a
^a)Institute of Physics, Polish Academy of Sciences, 02-668 Warszawa, Al. Lotników 32/46, Poland
^b)Groupe de Physique des Solides, Université Paris VII, Tour 23, 2 Place Jussieu, 75251 Paris Cedex 05, France

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Magnetic susceptibility of Cd_1-xFe_xTe_1-ySe_y was found to consist of Van Vleck term (characteristic for the Fe²⁺ centers in tetrahedral crystal symmetry) and temperature-dependent contribution. The occurrence of the latter indicates an existence of additional magnetic moments. We ascribe their origin to the modification of the Fe²⁺ energy level spectrum induced by mixed Te-Se anion environment.

DOI: 10.12693/APhysPolA.80.303
PACS numbers: 72.80.Ey, 75.20.Hr, 75.30.Cr