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Femtosecond x-ray d...
Femtosecond x-ray diffraction reveals a liquid–liquid phase transition in phase-change materials
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- Zalden, Peter (författare)
- Stanford Linear Accelerator Center (SLAC),European XFEL GmbH,Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, USA & Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, USA & European XFEL, Schenefeld, Germany
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- Quirin, Florian (författare)
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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- Schumacher, Mathias (författare)
- Institut für Theoretische Festkörperphysik, JARA-FIT and JARA-HPC, RWTH Aachen University, Aachen, Germany
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- Siegel, Jan (författare)
- CSIC - Instituto de Óptica Daza de Valdés; (IO-CSIC),Instituto de Optica, Consejo Superior de Investigaciones Científicas, Madrid, Spain
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- Wei, Shuai (författare)
- RWTH Aachen University,I. Physikalisches Institut and JARA-FIT, RWTH Aachen, Aachen, Germany
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- Koc, Azize (författare)
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, Germany & Institut für Physik und Astronomie, Universität Potsdam, Potsdam, Germany,University of Potsdam
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- Nicoul, Matthieu (författare)
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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- Trigo, Mariano (författare)
- Stanford Linear Accelerator Center (SLAC),Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, USA & Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, USA
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- Andreasson, Pererik (författare)
- Lund University,Lunds universitet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Department of Physics, Lund University, Lund, Sweden
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- Enquist, Henrik (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,MAX IV Laboratory,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Department of Physics, Lund University, Lund, Sweden
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- Shu, Michael J. (författare)
- Department of Applied Physics, Stanford University, Stanford, USA
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- Pardini, Tommaso (författare)
- Lawrence Livermore National Laboratory, Livermore, USA
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- Chollet, Matthieu (författare)
- Stanford Linear Accelerator Center (SLAC),Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, USA
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- Zhu, Diling (författare)
- Stanford Linear Accelerator Center (SLAC),Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, USA
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- Lemke, Henrik (författare)
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, USA & Paul Scherrer Institute, Villigen, Switzerland,Stanford Linear Accelerator Center (SLAC)
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- Ronneberger, Ider (författare)
- Institut für Theoretische Festkörperphysik, JARA-FIT and JARA-HPC, RWTH Aachen University, Aachen, Germany
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- Larsson, Jörgen (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,MAX IV Laboratory,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Department of Physics, Lund University, Lund, Sweden
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- Lindenberg, Aaron M. (författare)
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, USA & Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, USA & Department of Materials Science and Engineering, Stanford University, Stanford, USA,Stanford Linear Accelerator Center (SLAC)
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- Fischer, Henry E. (författare)
- Institut Laue-Langevin, Grenoble, France
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- Hau-Riege, Stefan (författare)
- Lawrence Livermore National Laboratory, Livermore, USA
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- Reis, David A. (författare)
- Stanford Linear Accelerator Center (SLAC),Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, USA & Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, USA
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- Mazzarello, Riccardo (författare)
- Institut für Theoretische Festkörperphysik, JARA-FIT and JARA-HPC, RWTH Aachen University, Aachen, Germany
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- Wuttig, Matthias (författare)
- Jülich Research Centre,RWTH Aachen University,I. Physikalisches Institut and JARA-FIT, RWTH Aachen, Aachen, Germany & PGI 10 (Green IT), Forschungszentrum Jülich, Jülich, Germany
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- Sokolowski-Tinten, Klaus (författare)
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Duisburg, Germany
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(creator_code:org_t)
- Washington, DC : American Association for the Advancement of Science (AAAS), 2019
- 2019
- Engelska 6 s.
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Ingår i: Science. - Washington, DC : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 364:6445, s. 1062-1067
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- In phase-change memory devices, a material is cycled between glassy and crystalline states. The highly temperature-dependent kinetics of its crystallization process enables application in memory technology, but the transition has not been resolved on an atomic scale. Using femtosecond x-ray diffraction and ab initio computer simulations, we determined the time-dependent pair-correlation function of phase-change materials throughout the melt-quenching and crystallization process. We found a liquid–liquid phase transition in the phase-change materials Ag4In3Sb67Te26 and Ge15Sb85 at 660 and 610 kelvin, respectively. The transition is predominantly caused by the onset of Peierls distortions, the amplitude of which correlates with an increase of the apparent activation energy of diffusivity. This reveals a relationship between atomic structure and kinetics, enabling a systematic optimization of the memory-switching kinetics.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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Zalden, Peter
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Quirin, Florian
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Schumacher, Math ...
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Siegel, Jan
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Wei, Shuai
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Koc, Azize
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visa fler...
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Nicoul, Matthieu
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Trigo, Mariano
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Andreasson, Pere ...
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Enquist, Henrik
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Shu, Michael J.
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Pardini, Tommaso
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Chollet, Matthie ...
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Zhu, Diling
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Lemke, Henrik
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Ronneberger, Ide ...
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Larsson, Jörgen
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Lindenberg, Aaro ...
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Fischer, Henry E ...
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Hau-Riege, Stefa ...
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Reis, David A.
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Mazzarello, Ricc ...
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Wuttig, Matthias
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Sokolowski-Tinte ...
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