| EPSRC Reference: |
GR/S64585/01 |
| Title: |
Anisotropic Transport and Magnetic Properties of High temperature Superconductors |
| Principal Investigator: |
Cooper, Professor J |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Superconductivity (IRC) |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 June 2004 |
Ends: |
30 September 2004 |
Value (£): |
310,402
|
| EPSRC Research Topic Classifications: |
| Magnetism/Magnetic Phenomena |
Materials Characterisation |
| Materials Synthesis & Growth |
|
|
| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
|
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
We propose a combination of transport and magnetic measurements on single crystals of several high temperature superconductors, some of which will be grown in our laboratory. Various specific experiments, aimed at understanding their transport properties at a level comparable with that of conventional superconductors, will be made. For yttrium barium copper oxide crystals these include the power law behaviour of the a-axis electrical resistivity as a function of hole-doping, the relationship between the residual resistivity and the suppression of Tc, and the variation in the Cu-0 chain resistivity (T2 power law and residual resistivity) with oxygen deficiency. The thermoelectric power of some of these crystals and their thermal conductivity in magnetic fields up to 15 T will also be studied with the same aim..The De Haas van Alphen effect and magnetic anisotropy of MgB2 crystals will be studied by cantilever magnetometry in order to see how the mean free paths of different bands are affected by alloying and isotopic substitution, and how these affect Tc and the upper critical field. The magnetic torque on single crystals and grain-aligned powders of the well-ordered intrinsically underdoped Y124 compound will be measured in fields up to 45 T in order to look for dHvA oscillations and to measure the irreversibility line at low temperatures
|
|
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.cam.ac.uk |