Formation of a gapless quantum spin liquid upon orbital ordering in a chain |
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| Authors: | S. S. Aplesnin N. I. Piskunova |
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| Affiliation: | (1) Kirensky Insitute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia;(2) Siberian State Aerospace University, Krasnoyarsk, 660014, Russia |
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| 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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