| EPSRC Reference: |
GR/K55448/01 |
| Title: |
PHONON STUDIES OF LOW DIMENSIONAL STRUCTURES GROWN BY THE NUMBERS SYNDICATE |
| Principal Investigator: |
Mellor, Dr CJ |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Sch of Physics & Astronomy |
| Organisation: |
University of Nottingham |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 1995 |
Ends: |
31 December 1998 |
Value (£): |
264,831
|
| EPSRC Research Topic Classifications: |
| Materials Characterisation |
|
|
| EPSRC Industrial Sector Classifications: |
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
We propose to use phonon techniques to study the FQHE, Wigner and IQHE states of 2DEGs and 2DHGs and the properties of quasi-one dimensional systems. The studies include emission and absorption and we plan to look for phonon diffraction from the Wigner lattice. The techniques include cw, pulse, coherent and imaging and we also plan to develop a phonon spectrometer base on a resonant tunnel device to examine the frequency distribution of emitted phonons. The experimental programme will be carried out in close interaction with parallel theoretical studies. We plan to explore the use of STM fabrication for new physics and devices using the newly installed STM housed in a UHV chamber. The programme includes pattern writing on thin films and semiconductors, using the STM to modify nanostructures prepared by selective etching and identifying the constraints set by properties such as substrate conductivity, alignment, contacting etc. on the feature sizes etc. that can be achieved by STM lithography. The samples for these programmes, for others of the NUMBERS research group (Quantum Transport, Far-Infrared, Devices etc.) and for other UK users will be prepared by the NUMBERS MBE unit. Many of the samples require innovative growth studies for their preparation.
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.nottingham.ac.uk |