National Physical Laboratory

Quantum Detection ResearchQuantum Detection Research

The Quantum Detection Group at NPL uses a broad range of technology, much of it at the nanometre scale, to explore physical phenomena for electrical metrology, magnetic sensing and communications.

Quantum Detection Research Areas

Previous Research Areas

  • With improved sensitivity allowing room-temperature detection of a magnetic bead with size of 120 nm and moment of ~107 µB.
  • With the moment down to 104 µB at 8K.
  • Scientists from the Quantum Detection Group at NPL participate in the Joint Research Project EXLO4 SpinCal (EMRP).
  • NPL scientists and their collaborators develop ultra-sensitive terahertz detectors, methods and instrumentation for their calibration.
  • The AFM-based technique developed at NPL has enabled the intrinsic electrical conductance of N-doped NTs to be measured for the first time. These measurements are important for the development of N-doped NT biosensor devices.
  • When the size of a conductor becomes comparable to the distance a particle inside it travels before scattering, ballistic effects occur, where classical relations such as Ohm's law no longer apply.
  • At NPL we develop methods, instrumentation and magnetic artefacts for quantitative measurements of magnetic parameters and phenomena in nanoscale systems.
  • A new commercial SQUID magnetometer is used to measure magnetic properties of a wide range of magnetic materials such as conventional ferromagnets, diluted magnetic semiconductors, functional oxides multiferroics, molecular magnets, etc.
  • Superconductivity is one of most fascinating manifestation of quantum effects on macroscopic scales, when at a certain low temperature a huge ensemble of electrons spontaneously forms a single whole called superconducting condensate described by a common wavefunction.
  • Scientists in the Quantum Detection group have developed a simple and versatile scanning probe platform which equally suites the needs of industry and challenging research projects.

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