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Personal profile

Research interests

Part of my work involves fabricating nanoscale electronic devices from materials - especially graphene - using various material transfer, lithoraphy, etching and thin film deposition techniques. After fabrication, the electronic properties, namely; mobility, low frequency noise spectra, magnetic response and current density are characterised. My PhD currently looks at graphene nanoscale Hall probes for use in high spatial and magnetic field resolution magnetic sensing/imaging.

My work also extends to Scanning Probe Microscopy (SPM). I use Atomic Force Microscopy to characterise the topography and structure of my fabricated devices. But, the more novel component of my SPM research comes from the use of a Scanning Hall Probe Microscope (SHPM), which I construct (the surface tracking and Hall probe compenent) and install to study superconducting materials and various other magnetic materials and devices of interest. My PhD currently looks at fabricating the Hall probe component out of graphene to then use a high resolution SHPM for the study of vortex pinning and vortex matter in unconventional and high temperature superconuducting materials. I am also looking to expand the use of the tool in room temperature ambient conditions for routine imaging and non-destructive testing.

Teaching interests

I currently demonstrate in undergraduate labs for both second and first year students.

One of my synergistic activities involves organising the International Physicists' Tournament. This is an undergraduate physics tournament, regarded as the 'world cup' of physics where undergraduate students solve up to 17 unsolved problems in physics and then defend their solutions at a scientific style conference in spring. Students will have up to ~9 months to solve both experimentally and theoretically as many of the problems they can.

Education/Academic qualification

Physics, Master in Science, University of Nottingham

23 Sep 201317 Jul 2017

External positions

President, International Physicists' Tournament

30 Sep 2017 → …

Keywords

  • Graphene
  • Nanoscience
  • Hall probe microscopy
  • Nanofabrication
  • Superconductivity
  • 2D Materials
  • Scanning Probe Microscopy

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Research Output 2018 2019

  • 4 Poster
  • 1 Conference contribution

Nanoscale CVD Graphene Hall Probes for high resolution Scanning Probe Microscopy

Collomb, D., Li, P., Bending, S. & Wolverson, D., 6 Mar 2019, Bulletin of the American Physical Society. American Physical Society

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nanoscale graphene Hall probes for Hall probe microscopy

Collomb, D., Li, P. & Bending, S., 10 Jan 2019, (Unpublished).

Research output: Contribution to conferencePoster

Graphene sensors for scanning Hall probe microscopy

Collomb, D., Li, P. & Bending, S., 9 May 2018, (Unpublished).

Research output: Contribution to conferencePoster

Sub-micron graphene Hall probes for Scanning Hall probe microscopy

Collomb, D., Li, P. & Bending, S., 30 Sep 2018, (Unpublished).

Research output: Contribution to conferencePoster