About: Amorphous to crystalline phase transition in carbon induced by intense femtosecond x-ray free-electron laser pulses

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About: Amorphous to crystalline phase transition in carbon induced by intense femtosecond x-ray free-electron laser pulses Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present the results of an experiment where amorphous carbon undergoes a phase transition induced by femtosecond 830 eV x-ray free-electron laser pulses. The phase transition threshold fluence is found to be 282 11 mJ/cm2. Atomic force microscopy, photoelectron microscopy, and micro-Raman spectroscopy give experimental evidence for the phase transition in terms of a volume expansion, graphitization, and change of local order of the irradiated sample area. The interaction is modeled by an accurate time-dependent treatment of the ionization dynamics coupled to a two-temperature model. At the phase transition fluence threshold the free-electron density Ne is found to be at maximum 9 1020 cm-3 while the ion (atom) temperature is found to be 1050 K, e.g., above the crystallization activation temperature reported in the literature. This low ionization rate and high atom temperature suggest a thermally activated phase transition. We present the results of an experiment where amorphous carbon undergoes a phase transition induced by femtosecond 830 eV x-ray free-electron laser pulses. The phase transition threshold fluence is found to be 282 11 mJ/cm2. Atomic force microscopy, photoelectron microscopy, and micro-Raman spectroscopy give experimental evidence for the phase transition in terms of a volume expansion, graphitization, and change of local order of the irradiated sample area. The interaction is modeled by an accurate time-dependent treatment of the ionization dynamics coupled to a two-temperature model. At the phase transition fluence threshold the free-electron density Ne is found to be at maximum 9 1020 cm-3 while the ion (atom) temperature is found to be 1050 K, e.g., above the crystallization activation temperature reported in the literature. This low ionization rate and high atom temperature suggest a thermally activated phase transition. (en)
Title	Amorphous to crystalline phase transition in carbon induced by intense femtosecond x-ray free-electron laser pulses Amorphous to crystalline phase transition in carbon induced by intense femtosecond x-ray free-electron laser pulses (en)
skos:prefLabel	Amorphous to crystalline phase transition in carbon induced by intense femtosecond x-ray free-electron laser pulses Amorphous to crystalline phase transition in carbon induced by intense femtosecond x-ray free-electron laser pulses (en)
skos:notation	RIV/68378271:_____/12:00382680!RIV13-GA0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(EE.2.3.20.0087), P(GAP108/11/1312), P(GAP205/11/0571), P(GAP208/10/2302), P(IAAX00100903), Z(AV0Z10100523)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Vorlíček, Vladimír Toufarová, Martina Vyšín, Luděk Burian, Tomáš Chalupský, Jaromír Hájková, Věra Juha, Libor
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	121841
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/12:00382680
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	amorphous carbon; phase transition; graphitization; x-ray laser; free-electron laser (en)
http://linked.open.../riv/klicoveSlovo	graphitization x-ray laser amorphous carbon free-electron laser phase transition
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[AB3E9FAF99E5]
http://linked.open...i/riv/nazevZdroje	Physical Review. B
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	7 (xsd:int)
http://linked.open...cetTvurcuVysledku	26 (xsd:int)
http://linked.open...vavai/riv/projekt	Teoretické a experimentální studie v prebiotické chemii nukleových kyselin Can laser plasmas produce chiral molecules? Fabrication of thin films of UV-Vis-NIR transparent dielectrics by repetitive, capillary-discharge XUV laser ablation Ionization and excitation of atomic and molecular gases exposed to intense extreme ultraviolet radiation: theory and experiment RESEARCH AND DEVELOPMENT OF NEW WAYS OF RADIATION GENERATION AND CHARGED PARTICLES BY ULTRA-INTENSE LASER FIELDS
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	86
http://linked.open...iv/tvurceVysledku	Amati, M. Burian, Tomáš Chalupský, Jaromír Hau-Riege, S. P. Hájková, Věra Juha, Libor Krzywinski, J. Vyšín, Luděk Gaudin, J. Sinn, H. Sobierajski, R. Störmer, M. Tschentscher, T. Boček, J. Vorlíček, Vladimír Toufarová, Martina Bostedt, C. Dastjani-Farahani, S. Graf, A. Gregoratti, L. Hoffmann, G. London, R. A. Moeller, S. Peyrusse, O. Schorb, S. Vu, H.
http://linked.open...ain/vavai/riv/wos	000306309300001
http://linked.open...n/vavai/riv/zamer	Intense Radiation Sources and Radiation-Matter Interaction
issn	1098-0121
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevB.86.024103

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