Showing papers by "Paul Seidel published in 1992"
TL;DR: In this article, the experimentally received tunneling spectra with multiple gap-like conductance peaks frequently measured on YBa2Cu3Ox/Pb tunnel contacts are discussed in the frame of two models: 1. Parallel connection of NIS type tunnel junctions and 2. intergranular tunneling between weakly connected YBaCu3ox grains containing multiple phases in the tunneling region.
Abstract: The experimentally received tunneling spectra with multiple gap-like conductance peaks frequently measured on YBa2Cu3Ox/Pb tunnel contacts, are discussed in the frame of two models: 1. parallel connection of NIS type tunnel junctions and 2. the intergranular tunneling between weakly connected YBa2Cu3Ox grains containing multiple phases in the tunneling region. It is shown that both models are capable to explain the observed main gap-like features.
Experimentell erhaltene Tunnelspektren mit mehreren luckenartigen Leitfahigkeitsmaxima, wie sie haufig bei YBaCuO/Pb-Tunnelkontakten erhalten werden, werden im Rahmen von zwei Modellen diskutiert: 1. Parallelschaltung von SIN-Tunnelkontakten und 2. intergranulares Tunneln zwischen schwach verbundenen YbaCuOx-Kornern, die im Tunnelbereich verschiedene Phasen bzw. Energielukken enthalten. Er wird gezeigt, das beide Modelle einsetzbar sind, um die beobachteten luckenartigen Strukturen zu erklaren.
6 citations
01 Jan 1992
TL;DR: In this paper, a dc SQUID was fabricated based on YBa2Cu3O7−x thin films with step edge junctions on steps on (100) SrTiO3 substrates.
Abstract: We have fabricated dc SQUIDs based on YBa2Cu3O7−x thin films with step edge junctions on steps on (100) SrTiO3 substrates. The steps were etched by ion milling, the YBa2Cu3O7−x films were inhibit layer patterned and deposited by laser ablation. The SQUIDs show perfect periodic flux-voltage characteristics in the temperature range between 4.2 K and 63 K. The voltage-flux transfer function was 3.3 mV/Φ0 and 12 µV/0Φ0 at 4.2 K and 63 K, respectively.
1 citations