Physical Review B, volume 97, issue 5, publication number 054518
Tunable superconducting critical temperature in ballistic hybrid structures with strong spin-orbit coupling
Publication type: Journal Article
Publication date: 2018-02-26
Journal:
Physical Review B
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 24699950, 24699969, 10980121, 1550235X
Abstract
We present a theoretical description and numerical simulations of the superconducting transition in hybrid structures including strong spin-orbit interactions. The spin-orbit coupling is taken to be of Rashba type for concreteness, and we allow for an arbitrary magnitude of the spin-orbit strength as well as an arbitrary thickness of the spin-orbit coupled layer. This allows us to make contact with the experimentally relevant case of enhanced interfacial spin-orbit coupling via atomically thin heavy metal layers. We consider both interfacial spin-orbit coupling induced by inversion asymmetry in an S/F-junction, as well as in-plane spin-orbit coupling in the ferromagnetic region of an S/F/S- and an S/F-structure. Both the pair amplitudes, local density of states and critical temperature show dependency on the Rashba strength and, importantly, the orientation of the exchange field. In general, spin-orbit coupling increases the critical temperature of a proximity system where a magnetic field is present, and enhances the superconducting gap in the density of states. We perform a theoretical derivation which explains these results by the appearance of long-ranged singlet correlations. Our results suggest that $T_c$ in ballistic spin-orbit coupled superconducting structures may be tuned by using only a single ferromagnetic layer.
Top-30
Citations by journals
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Physical Review B
8 publications, 66.67%
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Physical Review Letters
1 publication, 8.33%
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Applied Physics Letters
1 publication, 8.33%
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Reviews of Modern Physics
1 publication, 8.33%
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Mesoscience and Nanotechnology
1 publication, 8.33%
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Citations by publishers
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American Physical Society (APS)
10 publications, 83.33%
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American Institute of Physics (AIP)
1 publication, 8.33%
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Treatise
1 publication, 8.33%
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- We do not take into account publications without a DOI.
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Simensen H. T., Simensen H. T., Linder J. Tunable superconducting critical temperature in ballistic hybrid structures with strong spin-orbit coupling // Physical Review B. 2018. Vol. 97. No. 5. 054518
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Simensen H. T., Simensen H. T., Linder J. Tunable superconducting critical temperature in ballistic hybrid structures with strong spin-orbit coupling // Physical Review B. 2018. Vol. 97. No. 5. 054518
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TY - JOUR
DO - 10.1103/physrevb.97.054518
UR - https://doi.org/10.1103/physrevb.97.054518
TI - Tunable superconducting critical temperature in ballistic hybrid structures with strong spin-orbit coupling
T2 - Physical Review B
AU - Simensen, Haakon T
AU - Linder, Jacob
AU - Simensen, Haakon T.
PY - 2018
DA - 2018/02/26
PB - American Physical Society (APS)
IS - 5
VL - 97
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
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@article{2018_Simensen,
author = {Haakon T Simensen and Jacob Linder and Haakon T. Simensen},
title = {Tunable superconducting critical temperature in ballistic hybrid structures with strong spin-orbit coupling},
journal = {Physical Review B},
year = {2018},
volume = {97},
publisher = {American Physical Society (APS)},
month = {feb},
url = {https://doi.org/10.1103/physrevb.97.054518},
number = {5},
doi = {10.1103/physrevb.97.054518}
}