The non-random walk of chiral magnetic charge carriers in artificial spin ice
Abstract
The flow of magnetic charge carriers (dubbed magnetic monopoles) through frustrated spin ice lattices, governed simply by Coulombic forces, represents a new direction in electromagnetism. Artificial spin ice nanoarrays realise this effect at room temperature, where the magnetic charge is carried by domain walls. Control of domain wall path is one important element of utilizing this new medium. By imaging the transit of domain walls across different connected 2D honeycomb structures we contribute an important aspect which will enable that control to be realized. Although apparently equivalent paths are presented to a domain wall as it approaches a Y-shaped vertex from a bar parallel to the field, we observe a stark non-random path distribution, which we attribute to the chirality of the magnetic charges. These observations are supported by detailed statistical modelling and micromagnetic simulations. The identification of chiral control to magnetic charge path selectivity invites analogy with spintronics.
- Authors:
-
- Imperial College, London (United Kingdom). Dept. of Physics. Blackett Lab
- Cardiff Univ. (United Kingdom). School of Physics and Astronomy
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1624589
- Grant/Contract Number:
- AC03-76SF00098
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Science & Technology - Other Topics; MAGNETIC PROPERTIES AND MATERIALS; METAMATERIALS; SPINTRONICS; STATISTICAL PHYSICS, THERMODYNAMICS AND NONLINEAR DYNAMICS
Citation Formats
Zeissler, K., Walton, S. K., Ladak, S., Read, D. E., Tyliszczak, T., Cohen, L. F., and Branford, W. R. The non-random walk of chiral magnetic charge carriers in artificial spin ice. United States: N. p., 2013.
Web. doi:10.1038/srep01252.
Zeissler, K., Walton, S. K., Ladak, S., Read, D. E., Tyliszczak, T., Cohen, L. F., & Branford, W. R. The non-random walk of chiral magnetic charge carriers in artificial spin ice. United States. https://doi.org/10.1038/srep01252
Zeissler, K., Walton, S. K., Ladak, S., Read, D. E., Tyliszczak, T., Cohen, L. F., and Branford, W. R. Wed .
"The non-random walk of chiral magnetic charge carriers in artificial spin ice". United States. https://doi.org/10.1038/srep01252. https://www.osti.gov/servlets/purl/1624589.
@article{osti_1624589,
title = {The non-random walk of chiral magnetic charge carriers in artificial spin ice},
author = {Zeissler, K. and Walton, S. K. and Ladak, S. and Read, D. E. and Tyliszczak, T. and Cohen, L. F. and Branford, W. R.},
abstractNote = {The flow of magnetic charge carriers (dubbed magnetic monopoles) through frustrated spin ice lattices, governed simply by Coulombic forces, represents a new direction in electromagnetism. Artificial spin ice nanoarrays realise this effect at room temperature, where the magnetic charge is carried by domain walls. Control of domain wall path is one important element of utilizing this new medium. By imaging the transit of domain walls across different connected 2D honeycomb structures we contribute an important aspect which will enable that control to be realized. Although apparently equivalent paths are presented to a domain wall as it approaches a Y-shaped vertex from a bar parallel to the field, we observe a stark non-random path distribution, which we attribute to the chirality of the magnetic charges. These observations are supported by detailed statistical modelling and micromagnetic simulations. The identification of chiral control to magnetic charge path selectivity invites analogy with spintronics.},
doi = {10.1038/srep01252},
journal = {Scientific Reports},
number = 1,
volume = 3,
place = {United States},
year = {Wed Feb 13 00:00:00 EST 2013},
month = {Wed Feb 13 00:00:00 EST 2013}
}
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