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arXiv · 2007.00932

Magnetic-field-induced reorientation in the SDW and the spin-stripe phases of the frustrated spin-1/2 chain compound $\beta$-TeVO$_4$

M. Herak·N. Novosel·M. Dragičević·Thierry Guizouarn·Olivier Cador·Helmuth Berger·Matej Pregelj·Andrej Zorko·Denis Arčon
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Abstract

$\beta$-TeVO$_4$ is a frustrated spin 1/2 zig-zag chain system,where spin-density-wave (SDW), vector chiral (VC)and an exotic dynamic spin-stripe phase compete at low temperatures. Here we use torque magnetometry to study the anisotropy of these phases in magnetic fields of up to 5 T. Our results show that the magnetic-field-induced spin reorientation occurs in the SDW and in the spin stripe phases for $\mu_0 H \geq 2$~T. The observed spin reorientation is a new element of the anisotropic phase diagram for the field directions in the $ac$ and $a^*b$ crystallographic planes. The presented results should help establishing the model of anisotropic magnetic interactions, which are responsible for the formation of complex magnetic phases in $\beta$-TeVO$_4$ and similar quantum systems.

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M. Herak, N. Novosel, M. Dragičević, Thierry Guizouarn, Olivier Cador, Helmuth Berger, Matej Pregelj, Andrej Zorko, Denis Arčon. 2020-07-02. Magnetic-field-induced reorientation in the SDW and the spin-stripe phases of the frustrated spin-1/2 chain compound $\beta$-TeVO$_4$. https://doi.org/10.1103/physrevb.102.024422

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