caa a22 4500 475822390 CHVBK 20180406123822.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1023/A:1026643221197 doi (NATIONALLICENCE)springer-10.1023/A:1026643221197 Extraordinary Magnetic Properties of Ca1- x Eu x S and Sr1- x Eu x S Solid Solutions [Elektronische Daten] [M. Danilkin, S. Klimonskii, Yu. Koksharov, V. Kuznetsov, M. Must, V. Nikiforov, A. Primenko, N. Solov'eva, V. Seman] The electron paramagnetic resonance (EPR) spectra and the stationary magnetic susceptibility are investigated for Ca1-x Eu x S and Sr1-x Eu x S solid solutions (0.00005 < x < 0.0032). The EPR spectrum of Eu2+ in both matrices contains a wide structureless line in addition to the narrow lines of the superfine structure characteristic of ions with high local symmetry. Because of the extraordinary temperature dependence of this line in CaS:Eu, it is associated with strongly interacting magnetic centers, namely, exchange-coupling pairs and chains or more complex clusters of magnetic ions. At the same time, the dependence of the stationary magnetic susceptibility in the temperature range 4.2-50 K has no peculiarities for CaS:Eu and SrS:Eu and obeys the Curie law. Plenum Publishing Corporation, 2000 Danilkin M. D. I. Mendeleev Russian Chemical-Technological University, Russia aut Klimonskii S. Tartu University, Estonian Republic aut Koksharov Yu aut Kuznetsov V. D. I. Mendeleev Russian Chemical-Technological University, Russia aut Must M. Tartu University, Estonian Republic aut Nikiforov V. aut Primenko A. aut Solov'eva N. D. I. Mendeleev Russian Chemical-Technological University, Russia aut Seman V. Tartu University, Estonian Republic aut Russian Physics Journal Kluwer Academic Publishers-Plenum Publishers 43/8(2000-08-01), 670-674 1064-8887 43:8<670 2000 43 11182 https://doi.org/10.1023/A:1026643221197 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1026643221197 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Danilkin M. D. I. Mendeleev Russian Chemical-Technological University, Russia aut NATIONALLICENCE 700 1- Klimonskii S. Tartu University, Estonian Republic aut NATIONALLICENCE 700 1- Koksharov Yu aut NATIONALLICENCE 700 1- Kuznetsov V. D. I. Mendeleev Russian Chemical-Technological University, Russia aut NATIONALLICENCE 700 1- Must M. Tartu University, Estonian Republic aut NATIONALLICENCE 700 1- Nikiforov V. aut NATIONALLICENCE 700 1- Primenko A. aut NATIONALLICENCE 700 1- Solov'eva N. D. I. Mendeleev Russian Chemical-Technological University, Russia aut NATIONALLICENCE 700 1- Seman V. Tartu University, Estonian Republic aut NATIONALLICENCE 773 0- Russian Physics Journal Kluwer Academic Publishers-Plenum Publishers 43/8(2000-08-01), 670-674 1064-8887 43:8<670 2000 43 11182 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer