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Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes
We present a non-comprehensive review of some representative experimental studies in crystalline condensed matter systems where the effects of intense ultrashort light pulses are probed using x-ray diffraction and photoelectron spectroscopy. On an ultrafast (sub-picosecond) time scale, conventional...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Crystallographic Association
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5741437/ https://www.ncbi.nlm.nih.gov/pubmed/29308418 http://dx.doi.org/10.1063/1.4996176 |
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author | Johnson, S. L. Savoini, M. Beaud, P. Ingold, G. Staub, U. Carbone, F. Castiglioni, L. Hengsberger, M. Osterwalder, J. |
author_facet | Johnson, S. L. Savoini, M. Beaud, P. Ingold, G. Staub, U. Carbone, F. Castiglioni, L. Hengsberger, M. Osterwalder, J. |
author_sort | Johnson, S. L. |
collection | PubMed |
description | We present a non-comprehensive review of some representative experimental studies in crystalline condensed matter systems where the effects of intense ultrashort light pulses are probed using x-ray diffraction and photoelectron spectroscopy. On an ultrafast (sub-picosecond) time scale, conventional concepts derived from the assumption of thermodynamic equilibrium must often be modified in order to adequately describe the time-dependent changes in material properties. There are several commonly adopted approaches to this modification, appropriate in different experimental circumstances. One approach is to treat the material as a collection of quasi-thermal subsystems in thermal contact with each other in the so-called “N-temperature” models. On the other extreme, one can also treat the time-dependent changes as fully coherent dynamics of a sometimes complex network of excitations. Here, we present examples of experiments that fall into each of these categories, as well as experiments that partake of both models. We conclude with a discussion of the limitations and future potential of these concepts. |
format | Online Article Text |
id | pubmed-5741437 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Crystallographic Association |
record_format | MEDLINE/PubMed |
spelling | pubmed-57414372018-01-07 Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes Johnson, S. L. Savoini, M. Beaud, P. Ingold, G. Staub, U. Carbone, F. Castiglioni, L. Hengsberger, M. Osterwalder, J. Struct Dyn Swiss National Center of Competence in Research: Molecular Ultrafast Science and Technology We present a non-comprehensive review of some representative experimental studies in crystalline condensed matter systems where the effects of intense ultrashort light pulses are probed using x-ray diffraction and photoelectron spectroscopy. On an ultrafast (sub-picosecond) time scale, conventional concepts derived from the assumption of thermodynamic equilibrium must often be modified in order to adequately describe the time-dependent changes in material properties. There are several commonly adopted approaches to this modification, appropriate in different experimental circumstances. One approach is to treat the material as a collection of quasi-thermal subsystems in thermal contact with each other in the so-called “N-temperature” models. On the other extreme, one can also treat the time-dependent changes as fully coherent dynamics of a sometimes complex network of excitations. Here, we present examples of experiments that fall into each of these categories, as well as experiments that partake of both models. We conclude with a discussion of the limitations and future potential of these concepts. American Crystallographic Association 2017-12-22 /pmc/articles/PMC5741437/ /pubmed/29308418 http://dx.doi.org/10.1063/1.4996176 Text en © 2017 Author(s). 2329-7778/2017/4(6)/061506/20 All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Swiss National Center of Competence in Research: Molecular Ultrafast Science and Technology Johnson, S. L. Savoini, M. Beaud, P. Ingold, G. Staub, U. Carbone, F. Castiglioni, L. Hengsberger, M. Osterwalder, J. Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
title | Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
title_full | Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
title_fullStr | Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
title_full_unstemmed | Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
title_short | Watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
title_sort | watching ultrafast responses of structure and magnetism in condensed matter with momentum-resolved probes |
topic | Swiss National Center of Competence in Research: Molecular Ultrafast Science and Technology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5741437/ https://www.ncbi.nlm.nih.gov/pubmed/29308418 http://dx.doi.org/10.1063/1.4996176 |
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