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Title: Influence of Cu, Ga and Au dopants and technology conditions on the magnetic interactions in HgCr2Se4 single crystals
Authors: Krok-Kowalski, Józef
Władarz, Grzegorz
Groń, Tadeusz
Duda, Henryk
Pacyna, A.W.
Nikiforov, K.
Rduch, Paweł
Keywords: półprzewodniki magnetyczne; granice faz magnetycznych; kryształy; właściwości magnetyczne
Issue Date: 2011
Citation: Acta Physica Polonica A, Vol. 120, nr 5 (2011), s. 970-972
Abstract: For single crystals HgCr2Se4 doped by nonmagnetic Cu+, Au2+ and Ga3+ ions and single crystals of HgCr2Se4 matrix growing in different synthesis conditions both the dc and ac magnetic susceptibility as well as the magnetization have been measured. As it follows from the analysis of the obtained results, paradoxically, the dopants strengthen the long range magnetic interactions of the ferromagnetically ordered single crystals under study, evidenced by the higher values of the ordering temperature in comparison with those ones for pure matrix. An influence of the technological processes connected with deficiency and/or excess of Hg on the long range magnetic interactions was not observed.
ISSN: 0587-4246
Appears in Collections:Artykuły (WNŚiT)

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