Transient lattice deformations of crystals studied by means of ultrafast time-resolved x-ray and electron diffraction
Transient lattice deformations of crystals studied by means of ultrafast time-resolved x-ray and electron diffraction
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通过超快时间分辨 X 射线和电子衍射研究晶体的瞬态晶格变形
DOI:
10.1063/1.5029970
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发表时间:
2018-06
期刊:
影响因子:
--
通讯作者:
Rentzepis Peter M.
中科院分区:
文献类型:
--
作者:
Li Runze;Sundqvist Kyle;Chen Jie;Elsayed-Ali H. E.;Zhang Jie;Rentzepis Peter M.
Ultrafast lattice deformation of tens to hundreds of nanometer thick metallic crystals, after femtosecond laser excitation, was measured directly using 8.04 keV subpicosecond x-ray and 59 keV femtosecond electron pulses. Coherent phonons were generated in both single crystal and polycrystalline films. Lattice compression was observed within the first few picoseconds after laser irradiation in single crystal aluminum, which was attributed to the generation of a blast force and the propagation of elastic waves. The different time scales of lattice heating for tens and hundreds nanometer thick films are clearly distinguished by electron and x-ray pulse diffraction. The electron and lattice heating due to ultrafast deposition of photon energy was simulated using the two-temperature model and the results agreed with experimental observations. This study demonstrates that the combination of two complementary ultrafast time-resolved methods, ultrafast x-ray, and electron diffraction will provide a panoramic picture of the transient structural changes in crystals.
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DOI:
10.1063/1.2901028
发表时间:
2008-04
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Jau Tang
通讯作者:
Jau Tang
DOI:
10.1142/p641
发表时间:
2009-12
期刊:
--
影响因子:
--
作者:
A. Zewail;John Meurig Thomas
通讯作者:
A. Zewail;John Meurig Thomas
影响因子:
3.2
作者:
Runze Li;Pengfei Zhu;Jie Chen;Jianming Cao;Peter M. Rentzepis;Jie Zhang
通讯作者:
Jie Zhang
影响因子:
3.8
作者:
A. Ischenko;V. P. Spiridonov;L. Schäfer;J. D. Ewbank
通讯作者:
A. Ischenko;V. P. Spiridonov;L. Schäfer;J. D. Ewbank
影响因子:
35
作者:
Centurion, Martin;Reckenthaeler, Peter;Fill, Ernst E.
通讯作者:
Fill, Ernst E.