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Homogeneous superco...
Homogeneous superconductivity at the LaAlO3/SrTiO3 interface probed by nanoscale transport
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- Kalaboukhov, Alexei, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Aurino, Pier Paolo, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- galletti, luca, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bauch, Thilo, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lombardi, Floriana, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Winkler, Dag, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Claeson, Tord, 1938 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Golubev, D. (author)
- Aalto-Yliopisto,Aalto University
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(creator_code:org_t)
- 2017
- 2017
- English.
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In: Physical Review B. - 2469-9969 .- 2469-9950. ; 96:18
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Abstract
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- An interface between LaAlO3 and SrTiO3 (LAO/STO) may host two-dimensional superconductivity, strong spin-orbit coupling, and magnetic ordering. There are indications that the interfacial superconducting layer is nonhomogeneous at the nanoscale. The presence of inhomogeneities may have strong implications on the superconducting transport properties and lead to formation of weak links between superconducting regions. In this paper, we report on the temperature and magnetic field dependence of superconducting transport in single nanowires and nanorings fabricated in a LAO/STO interface. The analysis of data proves that our nanostructures behave like uniform superconducting filaments carrying a critical current close to the theoretical Ginzburg-Landau depairing limit. Furthermore, we unexpectedly find an enhancement of the critical current of LAO/STO nanowires and nanorings at low temperature when a magnetic field is applied. Our results point towards the coexistence of a homogeneous interfacial superconductivity and spatially separated magnetism at the LAO/STO interface.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- art (subject category)
- ref (subject category)
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Kalaboukhov, Ale ...
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Aurino, Pier Pao ...
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galletti, luca, ...
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Bauch, Thilo, 19 ...
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Lombardi, Floria ...
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Winkler, Dag, 19 ...
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Claeson, Tord, 1 ...
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Golubev, D.
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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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 ...
- By the university
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Chalmers University of Technology