English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Time-spliced X-ray diffraction imaging of magnetism dynamics in a NdNiO3 thin film

Beyerlein, K. (2018). Time-spliced X-ray diffraction imaging of magnetism dynamics in a NdNiO3 thin film. Proceedings of the National Academy of Sciences, 115(9), 2044-2048. doi:10.1073/pnas.1716160115.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0001-2F32-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-2240-E
Genre: Journal Article

Files

show Files
hide Files
:
1706.01718.pdf (Preprint), 2MB
Name:
1706.01718.pdf
Description:
Downloaded from arxiv.org: 2018-08-22
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2018
Copyright Info:
© the Author(s)
License:
-

Locators

show
hide
Locator:
Link (Any fulltext)
Description:
-

Creators

show
hide
 Creators:
Beyerlein, K.R.1, Author              
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              

Content

show
hide
Free keywords: coherent X-ray diffraction imagingresonant X-ray diffraction midinfrared laseroxide heterostructure antiferromagnetism
 Abstract: Imaging the atomic-scale dynamics of thin films is important to develop the next generation of computer technology. Coherent diffraction imaging can provide this information for other dimensionalities, but is unreliable when applied to thin-film measurements. This paper describes an approach to solving this problem using many measurements on a system that is changing in time. As an example, a demagnetization front is imaged as it sweeps through an antiferromagnetic film at twice the speed of sound, leaving a paramagnetic state in its wake. This fast switching is initiated by a midinfrared pulse tuned to the substrate. The recovered magnetization evolution then shows the potential for control of optoelectronic switching devices by driving interface lattice dynamics.Diffraction imaging of nonequilibrium dynamics at atomic resolution is becoming possible with X-ray free-electron lasers. However, there are unresolved problems with applying this method to objects that are confined in only one dimension. Here I show that reliable one-dimensional coherent diffraction imaging is possible by splicing together images recovered from different time delays in an optical pump X-ray probe experiment. The time and space evolution of antiferromagnetic order in a vibrationally excited complex oxide heterostructure is recovered from time-resolved measurements of a resonant soft X-ray diffraction peak. Midinfrared excitation of the substrate is shown to lead to a demagnetization front that propagates at a velocity exceeding the speed of sound, a critical observation for the understanding of driven phase transitions in complex condensed matter.

Details

show
hide
Language(s): eng - English
 Dates: 2018-02-27
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1073/pnas.1716160115
BibTex Citekey: Beyerlein2044
arXiv: 1706.01718
 Degree: -

Event

show

Legal Case

show

Project information

show hide
Project name : This work was funded by the European Research Council Grant 319286 (Q-MAC).
Grant ID : -
Funding program : -
Funding organization : -

Source 1

show
hide
Title: Proceedings of the National Academy of Sciences
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: National Academy of Sciences
Pages: - Volume / Issue: 115 (9) Sequence Number: - Start / End Page: 2044 - 2048 Identifier: ISSN: 0027-8424