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Title: Ultrafast imprinting of topologically protected magnetic textures via pulsed electrons

Short electron pulses are demonstrated to trigger and control magnetic excitations, even at low electron current densities. We show that the tangential magnetic field surrounding a picosecond electron pulse can imprint topologically protected magnetic textures such as skyrmions in a sample with a residual Dzyaloshinskii-Moriya spin-orbital coupling. Characteristics of the created excitations such as the topological charge can be steered via the duration and the strength of the electron pulses. Here, the study points to a possible way for a spatiotemporally controlled generation of skyrmionic excitations.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [1]
  1. Martin-Luther-Univ. Halle-Wittenberg, Halle (Saale) (Germany)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
SFB 762,Priority Programme 1840; AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 111; Journal Issue: 3; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 36 MATERIALS SCIENCE
OSTI Identifier:
1390305
Alternate Identifier(s):
OSTI ID: 1371599

Schaffer, A. F., Durr, H. A., and Berakdar, J.. Ultrafast imprinting of topologically protected magnetic textures via pulsed electrons. United States: N. p., Web. doi:10.1063/1.4991521.
Schaffer, A. F., Durr, H. A., & Berakdar, J.. Ultrafast imprinting of topologically protected magnetic textures via pulsed electrons. United States. doi:10.1063/1.4991521.
Schaffer, A. F., Durr, H. A., and Berakdar, J.. 2017. "Ultrafast imprinting of topologically protected magnetic textures via pulsed electrons". United States. doi:10.1063/1.4991521. https://www.osti.gov/servlets/purl/1390305.
@article{osti_1390305,
title = {Ultrafast imprinting of topologically protected magnetic textures via pulsed electrons},
author = {Schaffer, A. F. and Durr, H. A. and Berakdar, J.},
abstractNote = {Short electron pulses are demonstrated to trigger and control magnetic excitations, even at low electron current densities. We show that the tangential magnetic field surrounding a picosecond electron pulse can imprint topologically protected magnetic textures such as skyrmions in a sample with a residual Dzyaloshinskii-Moriya spin-orbital coupling. Characteristics of the created excitations such as the topological charge can be steered via the duration and the strength of the electron pulses. Here, the study points to a possible way for a spatiotemporally controlled generation of skyrmionic excitations.},
doi = {10.1063/1.4991521},
journal = {Applied Physics Letters},
number = 3,
volume = 111,
place = {United States},
year = {2017},
month = {7}
}