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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F13%3A00395857%21RIV14-MSM-68378271
rdf:type
skos:Concept n10:Vysledek
dcterms:description
We studied experimentally and theoretically the structural transition of diamond under an irradiation with an intense femtosecond extreme ultraviolet laser (XUV) pulse of 24–275 eV photon energy provided by free-electron lasers. Experimental results obtained show that the irradiated diamond undergoes a solid-to-solid phase transition to graphite, and not to an amorphous state. Our theoretical findings suggest that the nature of this transition is nonthermal, stimulated by a change of the interatomic potential triggered by the excitation of valence electrons. Ultrashort laser pulse duration enables to identify the subsequent steps of this process: electron excitation, band gap collapse, and the following atomic motion. A good agreement between the experimentally measured and theoretically calculated damage thresholds for the XUV range supports our conclusions. We studied experimentally and theoretically the structural transition of diamond under an irradiation with an intense femtosecond extreme ultraviolet laser (XUV) pulse of 24–275 eV photon energy provided by free-electron lasers. Experimental results obtained show that the irradiated diamond undergoes a solid-to-solid phase transition to graphite, and not to an amorphous state. Our theoretical findings suggest that the nature of this transition is nonthermal, stimulated by a change of the interatomic potential triggered by the excitation of valence electrons. Ultrashort laser pulse duration enables to identify the subsequent steps of this process: electron excitation, band gap collapse, and the following atomic motion. A good agreement between the experimentally measured and theoretically calculated damage thresholds for the XUV range supports our conclusions.
dcterms:title
Photon energy dependence of graphitization threshold for diamond irradiated with an intense XUV FEL pulse Photon energy dependence of graphitization threshold for diamond irradiated with an intense XUV FEL pulse
skos:prefLabel
Photon energy dependence of graphitization threshold for diamond irradiated with an intense XUV FEL pulse Photon energy dependence of graphitization threshold for diamond irradiated with an intense XUV FEL pulse
skos:notation
RIV/68378271:_____/13:00395857!RIV14-MSM-68378271
n10:predkladatel
n17:ico%3A68378271
n3:aktivita
n16:I n16:P n16:V
n3:aktivity
I, P(EE2.3.30.0057), P(GA13-28721S), P(GAP108/11/1312), P(GAP205/11/0571), P(GAP208/10/2302), P(LG13029), V
n3:cisloPeriodika
13
n3:dodaniDat
n11:2014
n3:domaciTvurceVysledku
n6:9517421 n6:6173047 n6:8434050 n6:8325200 n6:5662281 n6:3274713 n6:2712679
n3:druhVysledku
n15:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
96119
n3:idVysledku
RIV/68378271:_____/13:00395857
n3:jazykVysledku
n12:eng
n3:klicovaSlova
graphitization; diamond; XUV; free-electron lase
n3:klicoveSlovo
n8:graphitization n8:free-electron%20lase n8:XUV n8:diamond
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[CF817CB6D6F6]
n3:nazevZdroje
Physical Review. B
n3:obor
n4:BH
n3:pocetDomacichTvurcuVysledku
7
n3:pocetTvurcuVysledku
28
n3:projekt
n13:GA13-28721S n13:GAP108%2F11%2F1312 n13:GAP205%2F11%2F0571 n13:GAP208%2F10%2F2302 n13:EE2.3.30.0057 n13:LG13029
n3:rokUplatneniVysledku
n11:2013
n3:svazekPeriodika
88
n3:tvurceVysledku
Tiedtke, K. Medvedev, N. Loch, R. A. Vorlíček, Vladimír Ozkan, C. Ziaja, B. Hájková, Věra Jeschke, H. O. Harmand, M. Toleikis, S. Sinn, H. Moeller, S. Sobierajski, R. Saksl, K. Nagasono, M. Sovák, P. Jurek, M. Tschentscher, T. Krzywinski, J. Juha, Libor Burian, Tomáš Vyšín, Luděk Toufarová, Martina Gaudin, J. Wabnitz, H. Dastjani-Farahani, S. Klinger, D. Chalupský, Jaromír
n3:wos
000322812700001
s:issn
1098-0121
s:numberOfPages
4
n14:doi
10.1103/PhysRevB.88.060101