| EPSRC Reference: |
GR/H99202/01 |
| Title: |
MAGNETISATION STUDIES IN THE FRACTIONAL QUANTUM HALL AND ELECTRON SOLID REGIME. |
| Principal Investigator: |
Elliott, Dr M |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
School of Physics and Astronomy |
| Organisation: |
Cardiff University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 1993 |
Ends: |
30 June 1995 |
Value (£): |
123,251
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Summary on Grant Application Form |
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We propose to investigate the fundamental magnetic properties of high mobility two-dimensional electron and hole systems formed in semiconductor heterostructures. In particular we will make the first ever magnetisation measurements of the systems in their quantum fluid and Wigner solid phases, combining the expertise of the Cardiff applicants in the design and use of high sensitivity torque magnetometers with that of the Exeter applicant in milli-Kelvin studies of heterostructures in high magnetic fields. These measurements will break new ground in the field by providing the first true equilibrium measurement of a thermodynamic property of these quantum condensates. We expect to shed new light on the nature of the fluid, responsible for the fractional quantum Hall effect, by providing a measurement of the energy gap associated with the effect, devoid of the influence of disorder. Magnetisation measurements of the Wigner solid will be combined with those of the fluid to derive a gas-liquid-solid phase diagram for the system.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cf.ac.uk |