Scaling of Low-Temperature Heat Capacity in Cryocrystals

Fuente: arXiv
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Main Authors: Barabashko, M., Jeżowski, A., Krivchikov, A.
Format: Preprint
Published: 2025
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author Barabashko, M.
Jeżowski, A.
Krivchikov, A.
author_facet Barabashko, M.
Jeżowski, A.
Krivchikov, A.
contents The low-temperature isochoric heat capacity of cryocrystals was scaled using the universal scaling function. This universality links the magnitude of the anomaly and the characteristic temperature of the hump $T_{\mathrm{max}}$ in heat capacity, which is related to the first van Hove singularity in the phonon spectrum. For atomic, molecular, and quantum cryocrystals, $T_{\mathrm{max}}$ systematically shifts with molar volume, reflecting Brillouin zone scaling and revealing a common vibrational origin. These findings for the scaling function bridge thermodynamics with the vibrational density of states, highlighting fundamental universality in lattice dynamics.
format Preprint
id arxiv_https___arxiv_org_abs_2511_14409
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Scaling of Low-Temperature Heat Capacity in Cryocrystals
Barabashko, M.
Jeżowski, A.
Krivchikov, A.
Mesoscale and Nanoscale Physics
Quantum Gases
The low-temperature isochoric heat capacity of cryocrystals was scaled using the universal scaling function. This universality links the magnitude of the anomaly and the characteristic temperature of the hump $T_{\mathrm{max}}$ in heat capacity, which is related to the first van Hove singularity in the phonon spectrum. For atomic, molecular, and quantum cryocrystals, $T_{\mathrm{max}}$ systematically shifts with molar volume, reflecting Brillouin zone scaling and revealing a common vibrational origin. These findings for the scaling function bridge thermodynamics with the vibrational density of states, highlighting fundamental universality in lattice dynamics.
title Scaling of Low-Temperature Heat Capacity in Cryocrystals
topic Mesoscale and Nanoscale Physics
Quantum Gases
url https://arxiv.org/abs/2511.14409