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Science advances, volume 4, issue 7

Domain Meissner state and spontaneous vortex-antivortex generation in the ferromagnetic superconductor EuFe2(As0.79P0.21)2

Stolyarov V. S. 1, 2, 3, 4, 5
Veshchunov Ivan 5, 6
Baranov Denis S 1, 5, 7
Zhou Nan 8
Shi Zhixiang 8
Xu Xiaofeng 9
Pyon Sunseng 6
Sun Yue 6, 10
Jiao Wenhe 11
Cao Guanghan 11
Tamegai Tsuyoshi 6
Buzdin A. I. 13, 14
6
 
Department of Applied Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
10
 
Institute for Solid State Physics, The University of Tokyo, Kashiwa 277-8581, Japan.
Publication typeJournal Article
Publication date2018-07-06
Journal: Science advances
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor13.6
ISSN23752548
Multidisciplinary
Abstract
Adding ferromagnetism to superconductor leads to spatially patterned phases of spontaneously generated vortex-antivortex pairs. The interplay between superconductivity and magnetism is one of the oldest enigmas in physics. Usually, the strong exchange field of ferromagnet suppresses singlet superconductivity via the paramagnetic effect. In EuFe2(As0.79P0.21)2, a material that becomes not only superconducting at 24.2 K but also ferromagnetic below 19 K, the coexistence of the two antagonistic phenomena becomes possible because of the unusually weak exchange field produced by the Eu subsystem. We demonstrate experimentally and theoretically that when the ferromagnetism adds to superconductivity, the Meissner state becomes spontaneously inhomogeneous, characterized by a nanometer-scale striped domain structure. At yet lower temperature and without any externally applied magnetic field, the system locally generates quantum vortex-antivortex pairs and undergoes a phase transition into a domain vortex-antivortex state characterized by much larger domains and peculiar Turing-like patterns. We develop a quantitative theory of this phenomenon and put forth a new way to realize superconducting superlattices and control the vortex motion in ferromagnetic superconductors by tuning magnetic domains—unprecedented opportunity to consider for advanced superconducting hybrids.

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Stolyarov V. S. et al. Domain Meissner state and spontaneous vortex-antivortex generation in the ferromagnetic superconductor EuFe2(As0.79P0.21)2 // Science advances. 2018. Vol. 4. No. 7.
GOST all authors (up to 50) Copy
Stolyarov V. S., Veshchunov I., Grebenchuk S., Baranov D. S., Golovchanskiy I., Shishkin A. G., Zhou N., Shi Z., Xu X., Pyon S., Sun Y., Jiao W., Cao G., Vinnikov L. Ya., Golubov A. A., Tamegai T., Buzdin A. I., Roditchev D. Domain Meissner state and spontaneous vortex-antivortex generation in the ferromagnetic superconductor EuFe2(As0.79P0.21)2 // Science advances. 2018. Vol. 4. No. 7.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1126/sciadv.aat1061
UR - https://doi.org/10.1126%2Fsciadv.aat1061
TI - Domain Meissner state and spontaneous vortex-antivortex generation in the ferromagnetic superconductor EuFe2(As0.79P0.21)2
T2 - Science advances
AU - Stolyarov, V. S.
AU - Veshchunov, Ivan
AU - Grebenchuk, Sergey
AU - Baranov, Denis S
AU - Golovchanskiy, I.A.
AU - Shishkin, Andrey G.
AU - Shi, Zhixiang
AU - Xu, Xiaofeng
AU - Pyon, Sunseng
AU - Sun, Yue
AU - Cao, Guanghan
AU - Vinnikov, Lev Ya
AU - Tamegai, Tsuyoshi
AU - Buzdin, A. I.
AU - Roditchev, D.
AU - Jiao, Wenhe
AU - Golubov, Alexander A
AU - Zhou, Nan
PY - 2018
DA - 2018/07/06 00:00:00
PB - American Association for the Advancement of Science (AAAS)
IS - 7
VL - 4
PMID - 30027117
SN - 2375-2548
ER -
BibTex
Cite this
BibTex Copy
@article{2018_Stolyarov,
author = {V. S. Stolyarov and Ivan Veshchunov and Sergey Grebenchuk and Denis S Baranov and I.A. Golovchanskiy and Andrey G. Shishkin and Zhixiang Shi and Xiaofeng Xu and Sunseng Pyon and Yue Sun and Guanghan Cao and Lev Ya Vinnikov and Tsuyoshi Tamegai and A. I. Buzdin and D. Roditchev and Wenhe Jiao and Alexander A Golubov and Nan Zhou},
title = {Domain Meissner state and spontaneous vortex-antivortex generation in the ferromagnetic superconductor EuFe2(As0.79P0.21)2},
journal = {Science advances},
year = {2018},
volume = {4},
publisher = {American Association for the Advancement of Science (AAAS)},
month = {jul},
url = {https://doi.org/10.1126%2Fsciadv.aat1061},
number = {7},
doi = {10.1126/sciadv.aat1061}
}
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