http://www.cnr.it/ontology/cnr/individuo/prodotto/ID184962
Broken particle-hole symmetry at atomically-flat a-axis YBa2Cu3O7 interfaces (Articolo in rivista)
- Type
- Label
- Broken particle-hole symmetry at atomically-flat a-axis YBa2Cu3O7 interfaces (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevLett.93.107004 (literal)
- Alternative label
Bruce A. Davidson-1,2; Revaz Ramazashvili-1,3; Simon Kos1,4; James N. Eckstein-1 (2004)
Broken particle-hole symmetry at atomically-flat a-axis YBa2Cu3O7 interfaces
in Physical review letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Bruce A. Davidson-1,2; Revaz Ramazashvili-1,3; Simon Kos1,4; James N. Eckstein-1 (literal)
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- http://prl.aps.org/abstract/PRL/v93/i10/e107004 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1-Physics Department, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA; 2-INFM-TASC National Laboratory, Area Science Park, 34012 Basovizza (TS), Italy; 3-Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA; 4-Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA (literal)
- Titolo
- Broken particle-hole symmetry at atomically-flat a-axis YBa2Cu3O7 interfaces (literal)
- Abstract
- We have studied quasiparticle tunneling into atomically flat a-axis films of YBa2Cu3O7-? and DyBa2Cu3O7-? through epitaxial CaTiO3 barriers. The junction heterostructures were grown by oxide molecular beam epitaxy and were carefully optimized using in situ monitoring techniques, resulting in unprecedented crystalline perfection of the superconductor-insulator interface. Below Tc, the tunneling conductance shows the evolution of a large unexpected asymmetrical feature near zero-bias. This is evidence that superconducting YBCO crystals, atomically truncated along the lobe direction with a titanate layer, have intrinsically broken particle-hole symmetry over macroscopically large areas. (literal)
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