Geometry dependence of the charge transfer at YBa{sub 2}Cu{sub 3}O{sub 7}-metal interfaces

Journal Article · Sat Dec 01 04:00:00 EST 2007 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2821363· OSTI ID:21064473

Schuster, C; Schwingenschloegl, U ^[1]

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1. Institut fuer Physik, Universitaet Augsburg, 86135 Augsburg (Germany)

Transport in electronic devices based on high-T{sub c} superconductors depends critically on the charge redistribution at interfaces, since the band structure is modified on a local scale. Using the density functional theory approach for relaxed YBa{sub 2}Cu{sub 3}O{sub 7}-metal contacts, the charge transfer into the superconductor has been studied [U. Schwingenschloegl and C. Schuster, Appl. Phys. Lett. 90, 192502 (2007)]. In the present paper we discuss the systematics inherent in the local electronic structure of the near-contact YBa{sub 2}Cu{sub 3}O{sub 7} sites, in particular, the dependence on the contact geometry.

• OSTI ID: 21064473
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 11 Vol. 102; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
CHARGE EXCHANGE
CHARGE TRANSPORT
CUPRATES
DENSITY FUNCTIONAL METHOD
ELECTRIC CONTACTS
ELECTRONIC EQUIPMENT
ELECTRONIC STRUCTURE
HIGH-TC SUPERCONDUCTORS
YTTRIUM COMPOUNDS