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Induced unconventio...
Induced unconventional superconductivity on the surface states of Bi2Te3 topological insulator
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- Charpentier, Sophie, 1983 (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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- Kunakova, Gunta, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Arpaia, Riccardo, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Song, Yuxin, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Baghdadi, Reza, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wang, Shu Min, 1963 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kalaboukhov, Alexei, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Olsson, Eva, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tafuri, Francesco (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Golubev, Dmitry (author)
- Aalto-Yliopisto,Aalto University
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- Linder, Jacob (author)
- Norges teknisk-naturvitenskapelige universitet (NTNU),Norwegian University of Science and Technology (NTNU)
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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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(creator_code:org_t)
- 2017-12-08
- 2017
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723 .- 2041-1723. ; 8:1
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Abstract
Subject headings
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- Topological superconductivity is central to a variety of novel phenomena involving the interplay between topologically ordered phases and broken-symmetry states. The key ingredient is an unconventional order parameter, with an orbital component containing a chiral p(x) + ip(y) wave term. Here we present phase-sensitive measurements, based on the quantum interference in nanoscale Josephson junctions, realized by using Bi2Te3 topological insulator. We demonstrate that the induced superconductivity is unconventional and consistent with a sign-changing order parameter, such as a chiral px + ipy component. The magnetic field pattern of the junctions shows a dip at zero externally applied magnetic field, which is an incontrovertible signature of the simultaneous existence of 0 and pi coupling within the junction, inherent to a non trivial order parameter phase. The nano-textured morphology of the Bi2Te3 flakes, and the dramatic role played by thermal strain are the surprising key factors for the display of an unconventional induced order parameter.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- bi2se3
- symmetry
- strain
- edge
- junctions
- thin-films
Publication and Content Type
- art (subject category)
- ref (subject category)
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Charpentier, Sop ...
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galletti, luca, ...
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Kunakova, Gunta, ...
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Arpaia, Riccardo ...
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Song, Yuxin, 198 ...
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Baghdadi, Reza, ...
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Wang, Shu Min, 1 ...
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Kalaboukhov, Ale ...
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Olsson, Eva, 196 ...
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Tafuri, Francesc ...
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Golubev, Dmitry
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Linder, Jacob
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Bauch, Thilo, 19 ...
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Lombardi, Floria ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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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 ...
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Nature Communica ...
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Chalmers University of Technology