skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Auger-induced charge migration

Abstract

Novel perspectives of controlling molecular systems have recently arisen from the possibility of generating attosecond pulses in the ultraviolet regime and tailoring electron dynamics in its natural time scale. The cornerstone mechanism is the so-called charge migration, he production of a coherent charge transfer with subfemtosecond oscillations across a molecule. Typically, charge migration is induced by the ionization of valence molecular orbitals. However, recent technological developments allow the generation of attosecond pulses in the x-ray regime. Here, in this case, the absorption of photons creates core-hole states. In light elements, core-hole states mainly decay by Auger processes that, driven by electron correlations, involve valence orbitals. We theoretically demonstrate in a fluoroacetylene molecule a double-hole charge migration triggered by attosecond core-electron photoionization, followed by Auger electron relaxations. This opens a new route for inducing with x rays charge transfer processes in the subfemtosecond time scale.

Authors:
 [1];  [2];  [3];  [3]
  1. Univ. Autónoma de Madrid, Madrid (Spain). Dept. de Química; Univ. of Salamanca, Salamanca (Spain). Dept. de Física Aplicada
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division; Paul Scherrer Inst. (PSI), Villigen (Switzerland); Ecole Polytechnique Federale Lausanne (Switzlerland)
  3. Univ. of Salamanca, Salamanca (Spain). Dept. de Física Aplicada
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); European Union (EU)
OSTI Identifier:
1490232
Alternate Identifier(s):
OSTI ID: 1479174
Grant/Contract Number:  
AC02-06CH11357; 702565
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 98; Journal Issue: 4; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Picón, Antonio, Bostedt, Christoph Friedrich Otto, Hernández-García, C., and Plaja, L. Auger-induced charge migration. United States: N. p., 2018. Web. doi:10.1103/PhysRevA.98.043433.
Picón, Antonio, Bostedt, Christoph Friedrich Otto, Hernández-García, C., & Plaja, L. Auger-induced charge migration. United States. doi:10.1103/PhysRevA.98.043433.
Picón, Antonio, Bostedt, Christoph Friedrich Otto, Hernández-García, C., and Plaja, L. Fri . "Auger-induced charge migration". United States. doi:10.1103/PhysRevA.98.043433.
@article{osti_1490232,
title = {Auger-induced charge migration},
author = {Picón, Antonio and Bostedt, Christoph Friedrich Otto and Hernández-García, C. and Plaja, L.},
abstractNote = {Novel perspectives of controlling molecular systems have recently arisen from the possibility of generating attosecond pulses in the ultraviolet regime and tailoring electron dynamics in its natural time scale. The cornerstone mechanism is the so-called charge migration, he production of a coherent charge transfer with subfemtosecond oscillations across a molecule. Typically, charge migration is induced by the ionization of valence molecular orbitals. However, recent technological developments allow the generation of attosecond pulses in the x-ray regime. Here, in this case, the absorption of photons creates core-hole states. In light elements, core-hole states mainly decay by Auger processes that, driven by electron correlations, involve valence orbitals. We theoretically demonstrate in a fluoroacetylene molecule a double-hole charge migration triggered by attosecond core-electron photoionization, followed by Auger electron relaxations. This opens a new route for inducing with x rays charge transfer processes in the subfemtosecond time scale.},
doi = {10.1103/PhysRevA.98.043433},
journal = {Physical Review A},
issn = {2469-9926},
number = 4,
volume = 98,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on October 26, 2019
Publisher's Version of Record

Save / Share: