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arXiv · 2502.16327

Realization of discretized response in rare-earth vanadates accessed by AC susceptibility and magnetocaloric methods

Yuntian Li·Linda Ye·Mark P. Zic·Arkady Shekhter·Ian R. Fisher
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Abstract

This report presents a new technique to probe the quantitative dynamical response of the magnetic field induced heating/cooling process in rare-earth vanadium materials. The approach combines AC susceptibility and AC caloric measurements to reveal the intrinsic timescale associated with the magnetic relaxation process of rare-earth ions at low temperatures. Utilizing the well-known crystal field effect in YbVO4, we prove and demonstrate a discretized thermal analysis through a common spin-lattice relaxation phenomenon. The demonstration experiment presented in this study provides a general approach to quantitatively address multiple measured quantities in one unified discretized thermal circuit analysis. It can be extended to study other magnetic, dielectric, and elastic materials exhibiting a complex response to an external driving field in the presence of intrinsic interactions and fluctuations, particularly when an energy dissipation process is within an accessible frequency regime.

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Yuntian Li, Linda Ye, Mark P. Zic, Arkady Shekhter, Ian R. Fisher. 2025-02-22. Realization of discretized response in rare-earth vanadates accessed by AC susceptibility and magnetocaloric methods. https://arxiv.org/abs/2502.16327

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