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arXiv · 1512.07013

Magnetic Torque in k-(BETS)2Mn[N(CN)2]3

O. M. Vyaselev·S. V. Simonov·N. D. Kushch·M. V. Kartsovnik·W. Biberacher
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Abstract

Peculiarities observed in the field dependencies of the magnetic torque in k-(BETS)2Mn[N(CN)2]3 measured at T=1.5K, H=0-150kOe, have been explained from the viewpoint of the two interacting spin subsystems, one associated with d-electron spins of Mn2+ residing in the anion layer, and the other with the spins of pi-electrons which localize below the metal-insulator transition temperature, T_MI=25K, forming a long-range antiferromagnetic structure. The principal axes of the Mn2+ spin subsystem have been defined. A model of antiferromagnetic pi-spin arrangement has been suggested that associates the observed kinks in the torque H-dependencies with a spin-reorientation transition. One of the observed effects is ascribed to the pi-d interaction between the two spin subsystems.

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O. M. Vyaselev, S. V. Simonov, N. D. Kushch, M. V. Kartsovnik, W. Biberacher. 2015-12-22. Magnetic Torque in k-(BETS)2Mn[N(CN)2]3. https://arxiv.org/abs/1512.07013

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