Physical Review B, volume 106, issue 21, publication number 214511
Giant magnetoanisotropy in the Josephson effect and switching of staggered order in antiferromagnets
Publication type: Journal Article
Publication date: 2022-12-15
Journal:
Physical Review B
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 24699950, 24699969, 10980121, 1550235X
Abstract
We predict that the amplitude of the Josephson current through an antiferromagnetic weak link changes by several orders of magnitude upon rotation of the N\'eel order parameter characterizing the staggered magnetic order. This occurs due to the presence of spin-orbit coupling arising from structural inversion asymmetry which makes the band gap in the antiferromagnet highly sensitive to the staggered order parameter direction. We also demonstrate that when phase-biasing the junction, magnetization dynamics is induced which switches the direction of the N\'eel vector in the antiferromagnet. These results reveal an interesting versatility of antiferromagnetic Josephson junctions as they offer both a large tunability of the supercurrent magnitude via the staggered magnetization and phase-coherent control over the N\'eel order parameter.
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Physical Review B
4 publications, 80%
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Mesoscience and Nanotechnology
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American Physical Society (APS)
4 publications, 80%
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Falch V., Linder J. Giant magnetoanisotropy in the Josephson effect and switching of staggered order in antiferromagnets // Physical Review B. 2022. Vol. 106. No. 21. 214511
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Falch V., Linder J. Giant magnetoanisotropy in the Josephson effect and switching of staggered order in antiferromagnets // Physical Review B. 2022. Vol. 106. No. 21. 214511
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TY - JOUR
DO - 10.1103/physrevb.106.214511
UR - https://doi.org/10.1103/physrevb.106.214511
TI - Giant magnetoanisotropy in the Josephson effect and switching of staggered order in antiferromagnets
T2 - Physical Review B
AU - Falch, Vemund
AU - Linder, Jacob
PY - 2022
DA - 2022/12/15
PB - American Physical Society (APS)
IS - 21
VL - 106
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
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@article{2022_Falch,
author = {Vemund Falch and Jacob Linder},
title = {Giant magnetoanisotropy in the Josephson effect and switching of staggered order in antiferromagnets},
journal = {Physical Review B},
year = {2022},
volume = {106},
publisher = {American Physical Society (APS)},
month = {dec},
url = {https://doi.org/10.1103/physrevb.106.214511},
number = {21},
doi = {10.1103/physrevb.106.214511}
}