Search: WFRF:(Andersson Eric 1992)
> (2018) >
Probing the phase d...
Probing the phase diagram of cuprates with YBa2Cu3O7−δ thin films and nanowires
-
- Arpaia, Riccardo, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Andersson, Eric, 1992 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Trabaldo, Edoardo, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Bauch, Thilo, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Lombardi, Floriana, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show less...
-
(creator_code:org_t)
- 2018
- 2018
- English.
-
In: Physical Review Materials. - 2475-9953. ; 2:2
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://research.cha...
-
https://research.cha...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- We have grown and characterized 30-nm-thick YBa2Cu3O7−δ (YBCO) films, deposited by pulsed laser deposition on both MgO (110) and SrTiO3 (001) substrates, which induce opposite strain to the superconducting layer. By carefully tuning the in situ post-annealing oxygen pressure, we achieved, in a reproducible way, films at different oxygen doping, spanning from the slightly overdoped down to the strongly underdoped region of the phase diagram. The transport properties of the films, investigated through resistance versus temperature measurements, are in perfect qualitative agreement with single crystals. Starting from these films, we have also successfully fabricated nanowires with widths down to 65 nm, at different oxygen doping. The nanostructures exhibit characteristic temperatures (as the critical temperature Tc and the pseudogap temperature T∗) similar to those of the as-grown films and carry critical current densities Jc close to the critical depairing value, limited by vortex entry. This implies that the superconducting and the normal state properties of underdoped YBCO are preserved in our films, and they can be studied as a function of the dimensionality of the system, down to the nanoscale.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Nanoscale
- YBCO
- Underdoped
- Nanowires
- Thin-Film
- High-Temperature Superconductors
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database