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Supercurrent revers...
Supercurrent reversal in ferromagnetic hybrid nanowire Josephson junctions
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- Razmadze, D. (author)
- Niels Bohr Institute
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- Souto, R. Seoane (author)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas,Niels Bohr Institute
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- Galletti, L. (author)
- Niels Bohr Institute
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- Maiani, A. (author)
- Niels Bohr Institute
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- Liu, Y. (author)
- Niels Bohr Institute
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- Krogstrup, P. (author)
- Niels Bohr Institute
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- Schrade, C. (author)
- Niels Bohr Institute
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- Gyenis, A. (author)
- Niels Bohr Institute
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- Marcus, C. M. (author)
- Niels Bohr Institute
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- Vaitiekėnas, S. (author)
- Niels Bohr Institute
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Physical Review B. - 2469-9950. ; 107:8
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Abstract
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- We report supercurrent transport measurements in hybrid Josephson junctions comprising semiconducting InAs nanowires with epitaxial ferromagnetic insulator EuS and superconducting Al coatings. The wires display a hysteretic superconducting window close to the coercivity, away from zero external magnetic field. Using a multi-interferometer setup, we measure the current-phase relation of multiple magnetic junctions and find an abrupt switch between π and 0 phases within the superconducting window. We attribute the 0-π transition to the discrete flipping of the EuS domains and provide a qualitative theory showing that a sizable exchange field can polarize the junction and lead to the supercurrent reversal. Both 0 and π phases can be realized at zero external field by demagnetizing the wire.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Razmadze, D.
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Souto, R. Seoane
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Galletti, L.
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Maiani, A.
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Liu, Y.
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Krogstrup, P.
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show more...
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Schrade, C.
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Gyenis, A.
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Marcus, C. M.
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Vaitiekėnas, S.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Physical Review ...
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Lund University