𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Andreev reflections and experimental current–voltage characteristics of break junctions of polycrystalline HTSC

✍ Scribed by M.I. Petrov; D.M. Gokhfeld; D.A. Balaev; K.A. Shaihutdinov; R. Kümmel

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
254 KB
Volume
408-410
Category
Article
ISSN
0921-4534

No coin nor oath required. For personal study only.

✦ Synopsis

The temperature evolution of current-voltage characteristics (CVCs) of break junctions made from polycrystalline Y 0:75 Lu 0:25 Ba 2 Cu 3 O 7 and La 1:85 Sr 0:15 CuO 4 is investigated. The experimental CVCs have hysteretic features that reflect a part of a curve with negative differential resistance. The temperature evolution of the CVCs is discussed within the framework of the K€ ummel-Gunsenheimer-Nicolsky theory for superconductor/normal-metal/superconductor junctions considering multiple Andreev reflections. It is shown that the shape of the CVCs of break junctions is determined by the ratio of the number of ''short'' and ''long'' intergrain normal regions in the polycrystalline HTSC under investigation.

📜 SIMILAR VOLUMES

Superconductivity and current-voltage ch
Superconductivity and current-voltage characteristic of a YBCO/Ag/Pb junction
✍ K. Mizushima; K. Kubo; H. Kubota; M. Sagoi; T. Terashima; T. Miura; J. Yoshida 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 347 KB

The electric property of a YBCO/Ag/Pb junction was examined by a novel measurement echnique using a superconducting galvanome~er. The residual resistance below Ic was less ~han 10-14 ohm cm 2 . The current-vol~age chracteristic above Ic was measured wi~h a voltage sensi~ivity of 10 pV.

Temperature dependence of current-voltag
Temperature dependence of current-voltage characteristics of polycrystalline diamond FETs: modelling and experiment
✍ M. W. Shin; R. J. Trew; G. L. Bilbro; D. L. Dreifus; A. J. Tessmer 📂 Article 📅 1995 🏛 Springer US 🌐 English ⚖ 334 KB

For the first time, a theoretical model for polycrystalline diamond (PCD) field effect transistors is proposed. The model is accompanied by an investigation of the single crystalline diamond (SCD) FET for the verification of material parameters employed in the simulation. The model runs on a device

Theoretical and Experimental Study of th
Theoretical and Experimental Study of the Voltage–Current Characteristic of an Asymmetric Cellulose Acetate Membrane
✍ H.J.M Hijnen; J.A.M Smit 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 172 KB

The voltage-current characteristic of an asymmetric cellulose acetate (KP96) membrane in NaCl solutions (0.005-0.1 M) has been studied both experimentally and theoretically. The theoretical analysis was carried out within the context of a bilayer model, thereby taking into account ion transport acro

Effects of resistors and capacitors inse
Effects of resistors and capacitors inserted between wires and chip bonding pads on current–voltage characteristics of series junction arrays
✍ H. Akaike; S. Nagasawa; M. Hidaka 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 185 KB

Series Nb/AlO x /Nb junction array circuits are commonly used for evaluation of a critical current (I c ) spread as an important parameter on Nb-based LSI chips. We present a junction array circuit suitable for accurate evaluation of the spread. The circuit has a tolerance for the I c suppression ca