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

Title: Size analysis of sub-resolution objects by Kerr microscopy

Abstract

Here, a Kerr microscopy method for the quantitative measurement of the size of magnetic objects that are smaller than the resolution limit is proposed. It can be applied to domain walls, bubble domains and magnetic skyrmion-bubble hybrid microstructures. The method is based on the integral contrast, determined by proper line scans across the object, which turns out to be independent from the resolution of the microscope after normalization to the maximum domain contrast.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [3];  [4]
  1. Leibniz Institute for Solid State and Materials Research (IFW) Dresden, Dresden (Germany); Ural Federal Univ., Ekaterinburg (Russia)
  2. Tsinghua Univ., Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Leibniz Institute for Solid State and Materials Research (IFW) Dresden, Dresden (Germany); TU Dresden, Dresden (Germany)
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). Materials Sciences & Engineering Division
OSTI Identifier:
1463669
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 112; Journal Issue: 26; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Soldatov, I. V., Jiang, W., te Velthuis, S. G. E., Hoffmann, A., and Schafer, R. Size analysis of sub-resolution objects by Kerr microscopy. United States: N. p., 2018. Web. doi:10.1063/1.5027539.
Soldatov, I. V., Jiang, W., te Velthuis, S. G. E., Hoffmann, A., & Schafer, R. Size analysis of sub-resolution objects by Kerr microscopy. United States. doi:10.1063/1.5027539.
Soldatov, I. V., Jiang, W., te Velthuis, S. G. E., Hoffmann, A., and Schafer, R. Mon . "Size analysis of sub-resolution objects by Kerr microscopy". United States. doi:10.1063/1.5027539. https://www.osti.gov/servlets/purl/1463669.
@article{osti_1463669,
title = {Size analysis of sub-resolution objects by Kerr microscopy},
author = {Soldatov, I. V. and Jiang, W. and te Velthuis, S. G. E. and Hoffmann, A. and Schafer, R.},
abstractNote = {Here, a Kerr microscopy method for the quantitative measurement of the size of magnetic objects that are smaller than the resolution limit is proposed. It can be applied to domain walls, bubble domains and magnetic skyrmion-bubble hybrid microstructures. The method is based on the integral contrast, determined by proper line scans across the object, which turns out to be independent from the resolution of the microscope after normalization to the maximum domain contrast.},
doi = {10.1063/1.5027539},
journal = {Applied Physics Letters},
number = 26,
volume = 112,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1. FIG. 1.: (a) High-resolution Kerr image of a vortex wall on the (110)-surface of an Fe3%Si sheet (0.3 mm thick), imaged with a 100x oil immersion lens with a numerical aperture of 1.3. (b) Line scan across the wall (dots) with fit line, measured and averaged in the rectangular areamore » indicated in (a). (c) Domain contrast after rotating the sample by 90°, providing the maximum ‘image intensity’ under the given conditions« less

Save / Share:

Works referenced in this record:

Stray-field-induced Faraday contributions in wide-field Kerr microscopy and -magnetometry
journal, December 2015


A new magnetooptic effect related to non-uniform magnetization on the surface of a ferromagnet
journal, March 1990


Progress in magnetic domain observation by advanced magneto-optical microscopy
journal, July 2015


The magneto-optical gradient effect in an exchange-biased thin film: experimental evidence for classical diffraction theory
journal, May 2010


Selective sensitivity in Kerr microscopy
journal, July 2017

  • Soldatov, I. V.; Schäfer, R.
  • Review of Scientific Instruments, Vol. 88, Issue 7
  • DOI: 10.1063/1.4991820

Faraday rotation spectra of bismuth-substituted ferrite garnet films with in-plane magnetization
journal, October 2001


Magnetooptical Domain Wall Observation at Perpendicular Incidence
journal, September 1994


Enhancement of magneto-optical domain observation by digital image processing
journal, September 1985


Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
journal, December 2012


Blowing magnetic skyrmion bubbles
journal, June 2015


Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets
journal, February 2016

  • Woo, Seonghoon; Litzius, Kai; Krüger, Benjamin
  • Nature Materials, Vol. 15, Issue 5
  • DOI: 10.1038/nmat4593

Improvement in spatial frequency characteristics of magneto-optical Kerr microscopy
journal, September 2017


Direct observation of the skyrmion Hall effect
journal, September 2016

  • Jiang, Wanjun; Zhang, Xichao; Yu, Guoqiang
  • Nature Physics, Vol. 13, Issue 2
  • DOI: 10.1038/nphys3883

Advanced MOKE magnetometry in wide-field Kerr-microscopy
journal, October 2017

  • Soldatov, I. V.; Schäfer, R.
  • Journal of Applied Physics, Vol. 122, Issue 15
  • DOI: 10.1063/1.5003719

Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
journal, September 2011


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.