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Engineering underdo...
Engineering underdoped CuO2 nanoribbons in nm-thick a -axis YBa2Cu3 O7-δ films
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- Arpaia, Riccardo, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Alcalde Herraiz, Núria, 1997 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- D'Alessio, Andrea, 1997 (author)
- Politecnico di Milano,Polytechnic University of Milan,Danmarks Tekniske Universitet,Technical University of Denmark,Chalmers tekniska högskola,Chalmers University of Technology
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- Stepantsov, Evgeny, 1951 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Russian Academy of Sciences
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- Wahlberg, Eric, 1992 (author)
- RISE Research Institutes of Sweden,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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- 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)
- 2024
- 2024
- English.
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In: Physical Review Materials. - 2475-9953. ; 8:4
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Abstract
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- In underdoped cuprate high-Tc superconductors, various local orders and symmetry-breaking states, in addition to superconductivity, reside in the CuO2 planes. The confinement of the CuO2 planes can therefore play a fundamental role in modifying the hierarchy between the various orders and their intertwining with superconductivity. Here we present the growth of a-axis oriented YBa2Cu3O7-δ films, spanning the whole underdoped side of the phase diagram. In these samples, the CuO2 planes are confined by the film thickness, effectively forming unit-cell-thick nanoribbons. The unidirectional confinement at the nanoscale enhances the in-plane anisotropy of the films. By x-ray diffraction and resistance vs temperature measurements, we have discovered the suppression of the orthorhombic-to-tetragonal transition at low dopings, and a very high anisotropy of the normal state resistance in the b-c plane, the latter being connected to a weak coupling between adjacent CuO2 nanoribbons. These findings show that the samples we have grown represent a novel system, different from the bulk, where future experiments can possibly shed light on the rich and mysterious physics occurring within the CuO2 planes.
Subject headings
- 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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Arpaia, Riccardo ...
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Alcalde Herraiz, ...
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D'Alessio, Andre ...
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Stepantsov, Evge ...
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Wahlberg, Eric, ...
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Kalaboukhov, Ale ...
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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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and Condensed Matter ...
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Physical Review ...
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Chalmers University of Technology