Unconventional Thermophotonic Charge Density Wave

Charge-order states of broken symmetry, such as charge density wave (CDW), are able to induce exceptional physical properties, however, the precise understanding of the underlying physics is still elusive. Here, we combine fluctuational electrodynamics and density functional theory to reveal an unco...

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Bibliographic Details
Published in:arXiv.org 2024-08
Main Authors: Cheng-Long, Zhou, Torbatian, Zahra, Shui-Hua, Yang, Zhang, Yong, Hong-Liang, Yi, Antezza, Mauro, Novko, Dino, Cheng-Wei, Qiu
Format: Article
Language:English
Subjects:
Broken symmetry
Charge density waves
Controllability
Density functional theory
Electrodynamics
Heat transmission
Physical properties
Polaritons
Temperature dependence
Thermal transformations
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Summary:Charge-order states of broken symmetry, such as charge density wave (CDW), are able to induce exceptional physical properties, however, the precise understanding of the underlying physics is still elusive. Here, we combine fluctuational electrodynamics and density functional theory to reveal an unconventional thermophotonic effect in CDW-bearing TiSe\(_2\), referred to as thermophotonic-CDW (\(tp\)-CDW). The interplay of plasmon polariton and CDW electron excitations give rise to an anomalous negative temperature dependency in thermal photons transport, offering an intuitive fingerprint for a transformation of the electron order. Additionally, the demonstrated nontrivial features of \(tp\)-CDW transition hold promise for a controllable manipulation of heat flow, which could be extensively utilized in various fields such as thermal science and electron dynamics, as well as in next-generation energy devices.
ISSN:2331-8422
DOI:10.48550/arxiv.2408.03698