Ultrafast nonthermal heating of water initiated by an X-ray Free-Electron Laser

被引：37

作者：

Beyerlein, Kenneth R. ^{[1
]}

Jonsson, H. Olof ^{[2
]}

Alonso-Mori, Roberto ^{[3
]}

Aquila, Andrew ^{[3
]}

Barty, Sasa ^{[4
]}

Barty, Anton ^{[1
]}

Bean, Richard ^{[1
]}

Koglin, Jason E. ^{[3
]}

Messerschmidt, Marc ^{[3
]}

Ragazzon, Davide ^{[2
]}

Sokaras, Dimosthenis ^{[3
]}

Williams, Garth J. ^{[3
]}

Hau-Riege, Stefan ^{[5
]}

Boutet, Sebastien ^{[3
]}

Chapman, Henry N. ^{[1
,6
,7
]}

Imneanu, Nicusor T. ^{[2
,8
]}

Caleman, Carl ^{[1
,2
]}

机构：

[1] DESY, Ctr Free Electron Laser Sci, DE-22607 Hamburg, Germany

[2] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

[3] SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA

[4] DESY, Photon Sci, DE-22607 Hamburg, Germany

[5] Lawrence Livermore Natl Lab, Phys Div, Livermore, CA 94550 USA

[6] Univ Hamburg, Dept Phys, DE-22761 Hamburg, Germany

[7] Univ Hamburg, Ctr Ultrafast Imaging, DE-22761 Hamburg, Germany

[8] Uppsala Univ, Dept Cell & Mol Biol, SE-75124 Uppsala, Sweden

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2018年 / 115卷 / 22期

基金：

美国国家卫生研究院; 瑞典研究理事会;

关键词：

Serial Femtosecond Crystallography; X-ray Free-Electron Laser; non-local thermodynamics equilibrium; ultrafast phase transition; molecular dynamics; RADIATION-DAMAGE; SIMULATIONS; SCATTERING; CRYSTALLOGRAPHY; NANOCRYSTALS; DYNAMICS; PLASMAS; PULSES;

D O I：

10.1073/pnas.1711220115

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The bright ultrafast pulses of X-ray Free-Electron Lasers allow investigation into the structure of matter under extreme conditions. We have used single pulses to ionize and probe water as it undergoes a phase transition from liquid to plasma. We report changes in the structure of liquid water on a femtosecond time scale when irradiated by single 6.86 keV X-ray pulses of more than 10(6) J/cm(2). These observations are supported by simulations based on molecular dynamics and plasma dynamics of a water system that is rapidly ionized and driven out of equilibrium. This exotic ionic and disordered state with the density of a liquid is suggested to be structurally different from a neutral thermally disordered state.

引用

页码：5652 / 5657

页数：6

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