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YBa2Cu3O7-delta nan...
YBa2Cu3O7-delta nanorings to probe fluxoid quantization in High Critical Temperature Superconductors
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- Arpaia, Riccardo, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Charpentier, Sophie, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Toskovic, R. (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bauch, Thilo, 1972 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lombardi, Floriana, 1967 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- Engelska.
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Ingår i: Physica C: Superconductivity and its Applications. - : Elsevier BV. - 0921-4534. ; 506, s. 184-187
- Relaterad länk:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- We have realized YBa2Cu3O7-delta (YBCO) nanorings and measured the magnetoresistance R(B) close to the superconducting transition. The large oscillations that we have measured can be interpreted in terms of vortex dynamics triggering the nanowires to the resistive state. The Fast Fourier Transform spectrum of the magnetoresistance oscillations shows a single sharp peak for nanorings with narrower loop arm width: this peak can be univocally associated to a h/2e periodicity as predicted for optimally doped YBCO. Moreover it is a clear evidence of a uniform vorticity of the order parameter inside the rings, confirming a high degree of homogeneity of our nanostructures. This result gives a boost to further investigations of YBCO nanorings at different dopings within the superconducting dome, where in the underdoped regime a R(B) periodicity different from the conventional h/2e has been predicted.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- High-temperature superconductors
- Fluxoid quantization
- Nanorings
- Vortex dynamics
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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