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Journal Article

Gruneisen parameters in the quantum paramagnet with the magnetoelectric coupling


Zvyagin,  A. A.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Zvyagin, A. A., & Zvyagina, G. A. (2022). Gruneisen parameters in the quantum paramagnet with the magnetoelectric coupling. Low Temperature Physics, 48(10), 780-786. doi:10.1063/10.0014019.

Cite as: https://hdl.handle.net/21.11116/0000-000B-FFB2-D
It is shown theoretically that magnetic Gruneisen parameter for the quantum orthorhombic paramagnet manifests features similar to the ones observed in many-body quantum spin systems at critical points. For the paramagnet with the strong coupling between the spin and electric subsystems, we have introduced the electric Gruneisen parameter, which is the characteristic of the electrocaloric effect in the system. The low-temperature behavior of both Gruneisen parameters is determined by the crossover points of the spectrum of the quantum paramagnet. Published under an exclusive license by AIP Publishing.