Electronic structure of the 1{times}1 YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} superlattice: A local-spin-density approximation with on-site Coulomb interaction
Journal Article
·
· Physical Review, B: Condensed Matter
- Istituto Nazionale per la Fisica della Materia and Dipartimento di Fisica, Universita di Modena, via Campi 213/A, I-41100 Modena (Italy)
We performed self-consistent linear muffin-tin orbital atomic sphere approximation calculations of the electronic structure of the 1{times}1 YBa{sub 2}Cu{sub 3}O{sub 7}/PrBa{sub 2}Cu{sub 3}O{sub 7} (YBCO/PBCO) superlattice, based on the local-spin-density approximation with on-site Coulomb correlation. From our results, we can exclude that the experimentally observed depression of the critical temperature is originated intrinsically by a modification of the electronic structure of the CuO{sub 2} planes. We find that the charge transfer between YBCO and PBCO layers is one order lower than the value required to explain the strong depression of both the critical temperature {ital T}{sub {ital c}}(onset) and the zero-resistance transition temperature {ital T}{sup 0}{sub {ital c}}, within the hole-filling model. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 285974
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 2 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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