Thermal and nonthermal melting of III-V compound semiconductors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00509922" target="_blank" >RIV/61389021:_____/19:00509922 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/19:00521438
Result on the web
<a href="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.144101" target="_blank" >https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.144101</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.99.144101" target="_blank" >10.1103/PhysRevB.99.144101</a>
Alternative languages
Result language
angličtina
Original language name
Thermal and nonthermal melting of III-V compound semiconductors
Original language description
We study theoretically the response of group III-V compound semiconductors (AlAs, AlP, GaAs, GaP, GaSb) to free-electron laser irradiation, identifying their damage thresholds. The employed hybrid code XTANT is capable of modeling both thermal and nonthermal effects under ultrafast electronic excitation. It allowed us to reveal common trends in the studied materials: all but the AlAs III-V compounds studied here exhibit a phase transition into a metallic disordered state of lower density than the solid phase via a thermal phase transition. This transition is instigated by electron-ion coupling at doses below the nonthermal melting. Irradiated AlAs showed two possible phases produced: low-density and high-density liquid. We demonstrate that the transferrable tight-binding method within the Born-Oppenheimer approximation significantly overestimates the damage threshold predicting only nonthermal melting in comparison to a non-Born-Oppenheimer scheme, which accounts for both effects and their interplay.
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
2019
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
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Volume of the periodical
99
Issue of the periodical within the volume
14
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
144101
UT code for WoS article
000464717300004
EID of the result in the Scopus database
2-s2.0-85065128492