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Title: Specific heat and magnetic properties of single-crystalline (Zn0.925In0.054)[Cr1.84In0.152]Se-4 semiconductor
Authors: Malicka, Ewa
Groń, Tadeusz
Pacyna, A.
Ślebarski, Andrzej
Goraus, Jerzy
Gagor, A.
Mydlarz, T.
Keywords: pojemność cieplna; antyferromagnetyki; półprzewodniki magnetyczne
Issue Date: 2012
Citation: Acta Physica Polonica A, Vol. 122, nr 6 (2012), s. 1108-1110
Abstract: An antiferromagnetic order with a Néel temperature TN = 17:5 K, a strong ferromagnetic exchange evidenced by a positive Curie Weiss temperature CW = 77:3 K, the fuzzy peaks in the real component of susceptibility x′ (T) and the disappearance of the second critical eld were established. The curvature of speci c heat C(T) and C(T)=T in surrounding of TN indicated a broad peak, characteristic for the system with inhomogeneous magnetic state (spin-glass-like phase). The calculated magnetic entropy showed the value of S(T) 1 J/(mol K) which is extremely small; i.e., much lower than the magnetic contribution Rln(2S + 1) = 11:52 J/(mol K) calculated for the spin 3/2.
ISSN: 0587-4246
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