Early history and theoretical problems of photo-induced structural phase transitions
نویسندگان
چکیده
منابع مشابه
Structural phase transitions
Structural phase transitions can be studied by a variety of techniques; macroscopic fields, X-ray, light and neutron diffraction, and resonance methods. The information which can be obtained by these different techniques about the order parameter and susceptibility at structural phase transitions is described and compared. Landau theory coupled with the 'sot~ mode' concept provides a simple pic...
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www.sciencemag.org (this information is current as of November 20, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/296/5573/1681 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/296/5573/1681/DC1 can be f...
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Multimillion-atom molecular-dynamics simulations are used to investigate the shock-induced phase transformation of solid iron. Above a critical shock strength, many small close-packed grains nucleate in the shock-compressed body-centered cubic crystal growing on a picosecond time scale to form larger, energetically favored grains. A split two-wave shock structure is observed immediately above t...
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Peter Horak,1 Aurélien Dantan,2 and Michael Drewsen2 1Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United Kingdom 2QUANTOP, Danish National Research Foundation Center for Quantum Optics, Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark (Received 14 February 2012; revised manuscript received 10 August 2012; published 31 Oct...
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We have performed molecular-dynamics simulation to analyze structural phase transitions in a twodimensional system using a model which has been proposed to study pressure-induced martensitic transformation in iron. At low temperatures, the square↔hexagonal phase transition was observed at P =5.4 1 and the reverse transition occurred only by application of tension on the system. At a temperature...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2009
ISSN: 1742-6596
DOI: 10.1088/1742-6596/148/1/012064