Upper bounds on the highest phonon frequency and superconducting temperature from fundamental physical constants.

IF 2.3 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER
K Trachenko, B Monserrat, M Hutcheon, Chris J Pickard
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引用次数: 0

Abstract

Fundamental physical constants govern key effects in high-energy particle physics and astrophysics, including the stability of particles, nuclear reactions, formation and evolution of stars, synthesis of heavy nuclei and emergence of stable molecular structures. Here, we show that fundamental constants also set an upper bound for the frequency of phonons in condensed matter phases, or how rapidly an atom can vibrate in these phases. This bound is in agreement withab initiosimulations of atomic hydrogen and high-temperature hydride superconductors, and implies an upper limit to the superconducting transition temperatureTcin condensed matter. Fundamental constants set this limit to the order of 102-103K. This range is consistent with our calculations ofTcfrom optimal Eliashberg functions. As a corollary, we observe that the very existence of the current research of findingTcat and above 300 K is due to the observed values of fundamental constants. We finally discuss how fundamental constants affect the observability and operation of other effects and phenomena including phase transitions.

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来源期刊
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter 物理-物理:凝聚态物理
CiteScore
5.30
自引率
7.40%
发文量
1288
审稿时长
2.1 months
期刊介绍: Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
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