Email this article Visualization of the magnetic flux structure in phosphorus-doped EuFe2As2 single crystals
- Authors: Veshchunov I.S.1,2, Tamegai T.2, Cao G.3, Jiao W.3, Sun Y.2,4, Pyon S.2, Golovchanskiy I.A.1,5, Baranov D.S.1,2,6, Grebenchuk S.Y.1, Xu X.F.3, Shi Z.X.7, Zhou N.7, Stolyarov V.S.1,2, Vinnikov L.Y.8, Golubov A.A.1,9
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Affiliations:
- Moscow Institute of Physics and Technology (State University)
- Institute for Solid State Physics
- Department of Physics
- Department of Applied Physics
- National University of Science and Technology MISIS
- Laboratoire de physique et d’etude des materiaux
- Department of Physics and Key Laboratory of MEMS of the Ministry of Education
- Institute of Solid State Physics
- Faculty of Science and Technology and MESA+ Institute of Nanotechnology
- Issue: Vol 105, No 2 (2017)
- Pages: 98-102
- Section: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/160056
- DOI: https://doi.org/10.1134/S0021364017020151
- ID: 160056
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Abstract
Magnetic flux structure on the surface of EuFe2(As1-xPx)2 single crystals with nearly optimal phosphorus doping levels x = 0.20 and x = 0.21 is studied by low-temperature magnetic force microscopy and decoration with ferromagnetic nanoparticles. The studies are performed in a broad temperature range. It is shown that the single crystal with x = 0.21 in the temperature range between the critical temperatures TSC= 22 K and TC = (18 ± 0.3) K of the superconducting and ferromagnetic phase transitions, respectively, has the vortex structure of a frozen magnetic flux, typical for type-II superconductors. The magnetic domain structure is observed in the superconducting state below TC. The nature of this structure is discussed.
About the authors
I. S. Veshchunov
Moscow Institute of Physics and Technology (State University); Institute for Solid State Physics
Email: vinnik@issp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141700; Kashiwa, 277-8581
T. Tamegai
Institute for Solid State Physics
Email: vinnik@issp.ac.ru
Japan, Kashiwa, 277-8581
Guanghan Cao
Department of Physics
Email: vinnik@issp.ac.ru
China, Hangzhou, 310027
Wenhe Jiao
Department of Physics
Email: vinnik@issp.ac.ru
China, Hangzhou, 310027
Yue Sun
Institute for Solid State Physics; Department of Applied Physics
Email: vinnik@issp.ac.ru
Japan, Kashiwa, 277-8581; 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656
S. Pyon
Institute for Solid State Physics
Email: vinnik@issp.ac.ru
Japan, Kashiwa, 277-8581
I. A. Golovchanskiy
Moscow Institute of Physics and Technology (State University); National University of Science and Technology MISIS
Email: vinnik@issp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141700; Moscow, 119049
D. S. Baranov
Moscow Institute of Physics and Technology (State University); Institute for Solid State Physics; Laboratoire de physique et d’etude des materiaux
Email: vinnik@issp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141700; Kashiwa, 277-8581; Paris, 75005
S. Yu. Grebenchuk
Moscow Institute of Physics and Technology (State University)
Email: vinnik@issp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141700
X. F. Xu
Department of Physics
Email: vinnik@issp.ac.ru
China, Changshu, 215500
Z. X. Shi
Department of Physics and Key Laboratory of MEMS of the Ministry of Education
Email: vinnik@issp.ac.ru
China, Nanjing, 211189
N. Zhou
Department of Physics and Key Laboratory of MEMS of the Ministry of Education
Email: vinnik@issp.ac.ru
China, Nanjing, 211189
V. S. Stolyarov
Moscow Institute of Physics and Technology (State University); Institute for Solid State Physics
Email: vinnik@issp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141700; Kashiwa, 277-8581
L. Ya. Vinnikov
Institute of Solid State Physics
Author for correspondence.
Email: vinnik@issp.ac.ru
Russian Federation, Chernogolovka, Moscow region, 142432
A. A. Golubov
Moscow Institute of Physics and Technology (State University); Faculty of Science and Technology and MESA+ Institute of Nanotechnology
Email: vinnik@issp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141700; Enschede, 7500 AE
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