This article is cited in 2 papers

CONDENSED MATTER

Quantum oscillations of magnetization in antiferromagnetic semimetals on a triangular lattice

D. M. Dzebisashvili^ab, A. A. Khudaiberdyev<sup>a

a</sup> Kirensky Institute of Physics, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia
^b Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia

Abstract: The specific features of magnetization in antiferromagnetic semimetals with a low charge carrier density on a triangular lattice in a high magnetic field are studied. It is demonstrated that the well-known plateau in the magnetic field dependence of the magnetization manifesting itself in the subsystem of localized $S=1/2$ spins is actually not strictly horizontal but has a slight positive slope. It is found that an abrupt change in the frequency of quantum oscillations of the magnetization in the itinerant subsystem should be observed at the magnetic field values corresponding to the edges of this plateau owing to the strong $s{-}d(f)$ exchange coupling.

Received: 25.06.2018

DOI: 10.1134/S0370274X18150080

 English version: Journal of Experimental and Theoretical Physics Letters, 2018, 108:3, 189–195

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