Electron energy loss and angular asymmetry induced by elastic scattering in superfluid helium nanodroplets

被引：6
作者：
Asmussen, Jakob D. [1 ]
Sishodia, Keshav [2 ,3 ]
Bastian, Bjoern [1 ]
Abid, Abdul R. [1 ]
Ben Ltaief, Ltaief [1 ]
Pedersen, Henrik B. [1 ]
De, Subhendu [2 ,3 ]
Medina, Cristian [4 ]
Pal, Nitish [5 ]
Richter, Robert [5 ]
Fennel, Thomas [6 ]
Krishnan, Sivarama [2 ,3 ]
Mudrich, Marcel [1 ]
机构：
[1] Aarhus Univ, Dept Phys & Astron, Aarhus, Denmark
[2] Indian Inst Technol Madras, Quantum Ctr Excellence Diamond & Emergent Mat, Dept Phys, Madras, India
[3] Indian Inst Technol Madras, Dept Phys, Madras, India
[4] Univ Freiburg, Inst Phys, Freiburg, Germany
[5] Elettra Sincrotrone, Trieste, Italy
[6] Univ Rostock, Inst Phys, Rostock, Germany
来源：
NANOSCALE | 2023年 / 15卷 / 34期
关键词：
CROSS-SECTIONS; PHOTOEMISSION; IONIZATION; DROPLETS; PARTICLES; MOLECULES; KR; HE;
D O I：
10.1039/d3nr03295g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Helium nanodroplets are ideal model systems to unravel the complex interaction of condensed matter with ionizing radiation. Here we study the effect of purely elastic electron scattering on angular and energy distributions of photoelectrons emitted from He nanodroplets of variable size (10-10(9) atoms per droplets). For large droplets, photoelectrons develop a pronounced anisotropy along the incident light beam due to a shadowing effect within the droplets. In contrast, the detected photoelectron spectra are only weakly perturbed. This opens up possibilities for photoelectron spectroscopy of dopants embedded in droplets provided they are smaller than the penetration depth of the light and the trapping range of emitted electrons in liquid helium.
引用
收藏
页码：14025 / 14031
页数：7
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