Paul A Warburton

Intrinsic Josephson junctions Quantum fluctuations in Josephson junctions Nanoscale amorphous superconductors Zinc oxide nanocrystals Focussed-ion-beam nanofabrication and characterisation techniques Contact details: Office: 2C2 Tel: +44 (0)20 7679 3971 Ext: 33971 Fax: +44 (0)20 7679 0595 Email: p.warburtonucl.ac.uk

Research interests

Paul Warburton is an experimentalist working on the electronic properties of nanoscale devices. His particular interest is in the quantum properties of nanoscale Josephson junctions and other superconducting devices. His research group makes extensive use of focussed ion-beam nanofabrication. We have used this to do experiments with, for example, semiconducting nanocrystals and carbon nanotubes.

Paul Warburton runs the EPSRC facility for focussed-ion-beam nanofabrication based at UCL. He teaches on the MSc course in Nanotechnology and other courses within the EE department at UCL.

"Low-current focused-ion-beam induced deposition of three-dimensional tungsten nanoscale conductors" [PDF File]
W. Li, P. A. Warburton
Nanotechnology 18 485305 (2007)

"Josephson fluxon flow and phase diffusion in thin-film intrinsic Josephson junctions" [PDF File]
P. A. Warburton, A. R. Kuzhakhmetov, O. S. Chana, G. Burnell, M. G. Blamire, H. Schneidewind, Y. Koval, A. Franz, P. Mueller, D. M. C. Hyland, D. Dew-Hughes, H. Wu and C. R. M. Grovenor
J. Appl. Phys. 95, 4941 (2004)

Biography

• 2004: Senior Lecturer in LCN and EE at UCL
• 2001: Lecturer in EE at UCL
• 1995: Lecturer in EE at King’s College London
  
• 1994: Post-doc in Physics at University of Maryland
  
• 1994: PhD in Materials Science at University of Cambridge
  
• 1990: BA in Electrical and Information Sciences at University of Cambridge

Research

A zinc oxide tetrapod (SEM image by Marcus Newton)