THE EFFECT OF MAGNETIC-ORDERING ON THE QUANTUM TEMPERATURE OSCILLATIONS OF CURRENT-CARRIER MAGNETIZATION IN STRONGLY CORRELATED SYSTEMS

We show that the effect of magnetic ordering in magnetic semiconductor s by the mechanism of s-d(f) exchange interaction plays an important r ole in explaining the quantum temperature oscillations of band-electro n magnetization that were discovered in the experiments of S. G. Ovchi nnikov, V. K. Chernov, A. D. Balaev, N. B. Ivanova, B. P. Khrustalev, and V. A. Levshin (JETP Lett. 64, 642 (1995)). We analyze how hybridiz ation of band and localized electrons affects the amplitude of this ef fect. Finally, we establish that because of strong intratomic correlat ions the amplitude of the oscillation effects depends to a great exten t on the sign of the exchange constant J. (C) 1997 American Institute of Physics.