Journal of Physical Chemistry Letters, volume 13, issue 28, pages 6400-6406
Effective Exchange Energy in a Thin, Spatially Inhomogeneous CuNi Layer Proximized by Nb
Stolyarov V. S.
1, 2, 3, 4
,
Oboznov Vladimir
5
,
Kasatonov Daniil
3
,
Neilo Alexey
1, 6
,
Bakurskiy Sergey
1, 7
,
Klenov Nikolay
1, 6
,
Soloviev Igor
1, 7
,
Cren Tristan
4
,
Roditchev Dimitri
4, 9
7
8
Faculty of Science and Technology, MESA+ Institute of Nanotechnology, 7500 AE, Enschede, The Netherlands
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Publication type: Journal Article
Publication date: 2022-07-08
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.7
ISSN: 19487185
Physical and Theoretical Chemistry
General Materials Science
Abstract
Thin films of diluted magnetic alloys are widely used in superconducting spintronics devices. Most studies rely on transport measurements and assume homogeneous magnetic layers. Here we examine on a local scale the electronic properties of the well-known two-layer superconductor/ferromagnet structure Nb/CuNi. Scanning tunneling spectroscopy experiments demonstrated significant spatial variations of the tunneling conductance on nanoscale, with characteristic gapped, nongapped, and strongly zero-bias peaked spectra. The microscopic theory successfully reproduced the observed spectra and relied them to spatial variations of CuNi film thickness and composition, leading to strong variations of the effective exchange energy. The observed inhomogeneities put constraints on the use of diluted magnetic alloys in nanoscale devices.
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Journal of Physical Chemistry Letters
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Journal of Physical Chemistry Letters
1 publication, 100%
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Citations by publishers
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American Chemical Society (ACS)
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American Chemical Society (ACS)
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Stolyarov V. S. et al. Effective Exchange Energy in a Thin, Spatially Inhomogeneous CuNi Layer Proximized by Nb // Journal of Physical Chemistry Letters. 2022. Vol. 13. No. 28. pp. 6400-6406.
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Stolyarov V. S., Oboznov V., Kasatonov D., Neilo A., Bakurskiy S., Klenov N., Soloviev I., Kupriyanov M., Golubov A., Cren T., Roditchev D. Effective Exchange Energy in a Thin, Spatially Inhomogeneous CuNi Layer Proximized by Nb // Journal of Physical Chemistry Letters. 2022. Vol. 13. No. 28. pp. 6400-6406.
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TY - JOUR
DO - 10.1021/acs.jpclett.2c00978
UR - https://doi.org/10.1021%2Facs.jpclett.2c00978
TI - Effective Exchange Energy in a Thin, Spatially Inhomogeneous CuNi Layer Proximized by Nb
T2 - Journal of Physical Chemistry Letters
AU - Oboznov, Vladimir
AU - Neilo, Alexey
AU - Bakurskiy, Sergey
AU - Klenov, Nikolay
AU - Soloviev, Igor
AU - Kupriyanov, Mikhail
AU - Golubov, Alexander
AU - Cren, Tristan
AU - Roditchev, Dimitri
AU - Stolyarov, V. S.
AU - Kasatonov, Daniil
PY - 2022
DA - 2022/07/08 00:00:00
PB - American Chemical Society (ACS)
SP - 6400-6406
IS - 28
VL - 13
SN - 1948-7185
ER -
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@article{2022_Stolyarov,
author = {Vladimir Oboznov and Alexey Neilo and Sergey Bakurskiy and Nikolay Klenov and Igor Soloviev and Mikhail Kupriyanov and Alexander Golubov and Tristan Cren and Dimitri Roditchev and V. S. Stolyarov and Daniil Kasatonov},
title = {Effective Exchange Energy in a Thin, Spatially Inhomogeneous CuNi Layer Proximized by Nb},
journal = {Journal of Physical Chemistry Letters},
year = {2022},
volume = {13},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://doi.org/10.1021%2Facs.jpclett.2c00978},
number = {28},
pages = {6400--6406},
doi = {10.1021/acs.jpclett.2c00978}
}
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Stolyarov, V. S., et al. “Effective Exchange Energy in a Thin, Spatially Inhomogeneous CuNi Layer Proximized by Nb.” Journal of Physical Chemistry Letters, vol. 13, no. 28, Jul. 2022, pp. 6400-6406. https://doi.org/10.1021%2Facs.jpclett.2c00978.