Quantum temperature oscillations of the magnetization in the ferromagnetic semiconductor n-HgCr2Se4
Ovchinnikov S. G. , Chernov V. K. , Balaev A. D. , Ivanova N. B. , Levshin V. A., Khrustalev B. P.
A new quantum effect, predicted theoretically by V. V. Val'kov and S. G. Ovchinnikov [Sov. Phys. Solid State 23, 2032 (1981)], has been observed: temperature oscillations of the magnetization in a variable-valence system. The amplitude of the oscillations decreases with increasing temperature and decreasing field, just as in the de Haas-van Alphen effect. The effective mass is estimated as m* =0.01m0. © 1995 American Institute of Physics.