Comprehensive Study of High-Tc Interface Superconductivity

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Journal of Physics and Chemistry of Solids

DOI:https://doi.org/10.1016/j.jpcs.2010.03.014· OSTI ID:990716

Logvenov, G; Gozar, A; Butko, V Y; Bollinger, A T; Bozovic, N; Radovic, Z; Bozovic, I

Using ALL-MBE technique, we have synthesized different heterostructures consisting of an insulator La{sub 2}CuO{sub 4} (I) and a metal La{sub 1.56}Sr{sub 0.44}CuO{sub 4} (M) layer neither of which is superconducting by itself. The M-I bilayers were superconducting with a critical temperature T{sub c} {approx} 30-36 K. This highly robust phenomenon is confined within 1-2 nm from the interface and is primarily caused by the redistribution of doped holes across the interface. In this paper, we present a comprehensive study of the interface superconductivity by a range of experimental techniques including transport measurements of superconducting properties.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: DOE - Office Of Science
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 990716
• Report Number(s): BNL-94229-2010-JA; JPCSAW; KC0201050; TRN: US201020%%493
• Journal Information: Journal of Physics and Chemistry of Solids, Vol. 71, Issue 8; ISSN 0022-3697
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
TRANSITION TEMPERATURE
SUPERCONDUCTIVITY
SYNTHESIS
LANTHANUM OXIDES
COPPER OXIDES
STRONTIUM OXIDES
INTERFACES
oxides
thin films
epitaxial growth
superconductivity
crystal structure