Abstract
The exchange mechanism of the ordering of electrons on e g orbitals has been estimated by the quantum Monte Carlo method with the nclusion of the hopping integrals through an anion in a one-dimensional system. A magnetic state in the form of a gapless quantum spin liquid has been found. The plateau existence region in the field-dependence of the magnetization, as well as the wave vector of the modulation of the magnetic structure with Q = π/2 in the (magnetic field-exchange alternating) plane, is determined.
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Original Russian Text © S.S. Aplesnin, N.I. Piskunova, 2007, published in Pis’ma v zhurnal Éksperimental’noĭ i Teoreticheskoĭ fiziki, 2007, Vol. 85, No. 12, pp. 779–784.
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Aplesnin, S.S., Piskunova, N.I. Formation of a gapless quantum spin liquid upon orbital ordering in a chain. Jetp Lett. 85, 644–648 (2007). https://doi.org/10.1134/S0021364007120120
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DOI: https://doi.org/10.1134/S0021364007120120