Fine control of lattice thermal conductivity in low-dimensional materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00345741" target="_blank" >RIV/68407700:21230/21:00345741 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.103.035406" target="_blank" >https://doi.org/10.1103/PhysRevB.103.035406</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.103.035406" target="_blank" >10.1103/PhysRevB.103.035406</a>
Alternative languages
Result language
angličtina
Original language name
Fine control of lattice thermal conductivity in low-dimensional materials
Original language description
Optimal regulation of lattice thermal conductivity in low-dimensional materials is fundamental to obtain highly efficient miniaturized devices. To this aim, we use quantum-mechanical based analyses to understand how atomic type and structural geometry determine electron density and lattice dynamic features ruling the thermal conduction. As a case study, we consider layered van der Waals transition metal dichalcogenides with a finite number of layers. We find that a large thermal conductivity is realized when the atomic bonds display highly covalent character, promoting fast motions of the cations in correspondence of the low-frequency phonon band. Such an effect is the result of the entangled electronic and phonon features, which are captured by the covalency and cophonicity metric. The investigation protocol that we present has general applicability and can be used to design novel thermal low-dimensional materials irrespective of the kind of atomic topology and chemical composition.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW B
ISSN
2469-9950
e-ISSN
2469-9969
Volume of the periodical
103
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
"035406-1"-"035406-8"
UT code for WoS article
000606725500002
EID of the result in the Scopus database
2-s2.0-85099287815