Concept

Current–voltage characteristic

Related publications (236)

Tunnelling experiments in high Tc superconductors

Tunnelling experiments have played an essential role in the development and verification of theories for superconductivity. They are usually interpreted within the so-called semiconductor model, in which the tunnelling current is given by the convolution o ...

EPFL2005

Analyses and implications of V-I characteristic of PF insert conductor sample

Pierluigi Bruzzone, Rainer Wesche

Two short lengths of the full-size NbTi cable-in-conduit (CIC) conductor used to fabricate the ITER poloidal field coil insert were tested in the SULTAN facility. The two investigated conductors, otherwise identical, are distinguished only by the presence ...

2005

Synchronous Generator No-Load Voltage Prediction using a Combined Analytical and FEM Approach.

Jean-Jacques Simond, Mai Tu Xuan, Stefan Keller

A combined analytical and FEM method for prediction of the no-load voltage waveform of laminated salient pole synchronous generators is presented in this article. Very precise prediction of the no-load voltage, including saturation effects as well as the e ...

2005

Microscopic aspects of the region-by-region polarization reversal kinetics of polycrystalline ferroelectric Pb(Zr,Ti)O-3 films

Nava Setter, Alexander Tagantsev, Igor Stolichnov, Enrico Colla, Lisa Malin

The region-by-region polarization switching in ferroelectric Pb(Zr,Ti)O-3 thin films sandwiched between Pt electrodes has been directly observed using piezoelectric scanning probe microscopy. A resolution improved by one order-of-magnitude compared to the ...

2005

Prediction of the No-Load Voltage Waveform of Laminated Salient-Pole Synchronous Generators.

Jean-Jacques Simond, Mai Tu Xuan, Stefan Keller

This paper presents a combined analytical and FEM method for prediction of the no-load voltage waveform of laminated salient-pole synchronous generators. The described method takes into account saturation effects as well as the damper bar currents due to t ...

2005

Non-Linear Properties and Efficiency Improvements of a Bi-Directional Isolated DC-AC Converter with Soft Commutation

Alfred Rufer, Christophe Chabert

This paper presents the operation principle and the properties of a single-phase DC-AC converter with medium frequency transformer and soft commutation. The influence of the non-dissipative snubber capacitor and the transformer parasitic components for ZVS ...

2005

Bubble evolution on a vertical electrode under extreme current densities

Christos Comninellis, Hannes Bleuler, Rolf Wüthrich

Under gas evolution, the current voltage characteristics of an electrochemical cell are strongly affected by the presence of growing bubbles. At high current densities, the evolution of the bubbles becomes the rate limiting step of the electrochemical proc ...

2005

Interface modification to optimize charge separation in cyanine heterojunction photovoltaic devices

Frank Nüesch, Libero Zuppiroli, Grégory Tornare

We investigate heterojunction photovoltaic devices using the carbocyanine 1,1'-diethyl-3,3,3',3'-tetramethylcarbocyanine perchlorate (Cy5) as donor and buckminsterfullerene (C60) as acceptor. We find that photocurrent generation occurs at the in ...

Elsevier2005

Self-field effects in NbTi subsize cable-in-conduit conductors

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche, Martin Vogel

In the framework of the conductor optimisation task (CONDOPT) five NbTi subsize cable-in-conduit conductors with parametric variations were fabricated. The DC performance of these conductors tested in the SULTAN test facility [IEEE Trans. Appl. Supercond. ...

2004

The voltage-current relations for MgB2 obtained by reactive liquid infiltration

Pierluigi Bruzzone, Rainer Wesche

The reactive liquid infiltration (RLI) technique, applied to-the MgB2 material, has allowed us to obtain either bulk or wire samples of good transport properties. The evaluation of the voltage-current characteristics, V-I-n, for typical samples, measured b ...

2004

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