Physikalisch-Technische Bundesanstalt (PTB)

News from the Annual Report 2008

Fundamentals of Metrology:

New Speed Record for Magnetic Memories

Electron race track in semiconductor structures

Extension of the quantum-Ohm scale by vertical integration Quantum-Hall effect in a double act

Switchyard for single electrons – would you like one electron more?

Three-Phase Primary AC Power Sampling Standard with Improved Frequency Resolution.

Integration of the π-junctions into Josephson qubits and single flux quantum logic structures

Generation of high-precision arbitrary Waveforms using the pulse-driven AC Josephson Voltage Standard

Optimized experimental stup for the pulse-driven AC Josephson Voltage Standard

New EU-funded support action S-PULSE: Potential of superconducting electronics for future technologies

Robust single-electron pump

All-optically generated voltage pulses on planar waveguides

Reduction of the measurement uncertainty for the dissemination of the unit Tesla in the range between 20 µT and 2 mT

New technique for the simultaneous generation and detection of ultrashort voltage pulses

Stability of the domain structure of nanoparticle thin films

Experiment for realization of the “Quantum Metrology Triangle” on its final straight:

Graphene – the Quantum-Ohm in a pencil trace

The ac quantum Hall resistance as a quantum standard of capacitance

Modeling and Measuring Error Contributions in Stepwise Synthesized Josephson Sine Waves

Metrology for Economy:

Math-based calibration of vector network analyzers

New precision amplifiers extend the measurement capabilities for alternating current to lower current levels



Metrology of Society:



International Affairs:

News from Annual Report 2007

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