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  • Open Access

Low-symmetric quantum magnets as a step to terahertz invisibility

A. A. Zvyagin1,2,3,* and V. V. Slavin1

  • *Contact author: dr.zvyagin@gmail.com
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Phys. Rev. B 113, 054427 – Published 17 February, 2026

DOI: https://doi.org/10.1103/ch7p-gfg9

Abstract

Quantum spin systems with low symmetries of the magnetic properties are studied. It is shown that the low symmetry yields special effects of their magnetic characteristics. Magnetic moments induced by the external magnetic field can be nonparallel to the direction of the field. Also, components of the magnetic susceptibility of such systems can be negative in a large range of the field and temperature values, i.e., they manifest diamagnetic behavior. The origin of the effect is totally quantum. Such a behavior is generic for quantum paramagnets, low-dimensional quantum spin systems, and for quantum spin systems with geometrical frustration of spin-spin couplings. The effect can be important for applications of such quantum systems, e.g., in the creation of metamaterials or in quantum computing.

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Phys. Rev. B 113, 054427– Published 17 February, 2026
  • Received 25 April 2025
  • Revised 4 January 2026
  • Accepted 22 January 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by Max Planck Society.

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