| EPSRC Reference: |
GR/M20587/01 |
| Title: |
HIGH RESOLUTION ELECTRONIC SPECIFIC HEAT STUDIES OF HIGH TC SUPERCONDUCTORS IN A MAGNETIC FIELD |
| Principal Investigator: |
Liang, Professor W |
| Other Investigators: |
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| Department: |
Superconductivity (IRC) |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 September 1998 |
Ends: |
31 August 2001 |
Value (£): |
276,039
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| EPSRC Research Topic Classifications: |
| Condensed Matter Physics |
Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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From measurements of the electronic specific heat over the temperature range 1.8K-300K in a 15T magnet using a differential technique we will obtain information on the normal state and superconducting condensate for several high Tc series. Detailed studies will be made of the normal state pseudogap in optimal and underdoped cuprates and its pernicious effect on the condensate, and also the progression to conventional Fermi liquid behaviour in the overdoped region. Materials to be investigated include Bi-2212, Bi2223, T1-2223, (Nd,Ce)-214 and Hg - 1201, with appropriate oxygenation or cation doping to achieve the desired carrier density, the first such systematic study over a full doping range for these series. Pair breaking and other effects of Zn, Ni or Co substitution will be studied. As part of our programme to optimise superconductivity performance we will study the beneficial effects of metallising interlayers on the condensation energy and interlayer coupling (eg, Re in Hg-1223) and obtain useful thermodynamic information on technologically important melt-processed materials (eg, melt-textured YBCO and Bi-2212). We will compare the normal state and superconducting properties of electron doped cuprates with their hole doped counterparts and investigate the flux latticemelting transition in Bi-2212 crystals.
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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.cam.ac.uk |