Point Contact Studies of High T_{c} Superconductors

• Authors: B. Susła , S. Meepagala , E. Wolf
• Languages of publication: EN

Abstracts

EN

Point contact spectroscopy experiments were performed on both single crystals Bi_{2}Sr_{2}CaCu_{2}O_{8+y} and BiSrCaCuO/Ag sintered material using gold tips. The spectra exhibit tunneling structure, which are interpreted in terms of the energy gap structure 2Δ = 58 meV at 4.2 K. We observed the strong Andreev reflection of the Au-BiSrCaCuO/Ag boundary.

Keywords

EN

74.50.+r; 74.70.Tx

Discipline

• 74.50.+r: Tunneling phenomena; Josephson effects(for SQUIDs, see 85.25.Dq; for Josephson devices, see 85.25.Cp; for Josephson junction arrays, see 74.81.Fa)
• 74.70.Tx: Heavy-fermion superconductors(for heavy-fermion systems in magnetically ordered materials, see 75.30.Mb; see also 71.27.+a Strongly correlated electron systems, heavy fermions)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 84
• Issue: 2
• Pages: 315-319

Dates

published

1993-08

received

1992-12-14

(unknown)

1993-05-24

Contributors

author

B. Susła

• Institute of Physics, Poznań Technical University, Piotrowo 3, 60-965 Poznań, Poland

author

S. Meepagala

• Department of Physics, Polytechnic University, Brooklyn, New York 11201, USA

author

E. Wolf

• Department of Physics, Polytechnic University, Brooklyn, New York 11201, USA

Identifiers

DOI

10.12693/APhysPolA.84.315