| EPSRC Reference: |
GR/R34615/01 |
| Title: |
Novel simultaneous conduction calorimeter - X-ray diffractometer. |
| Principal Investigator: |
Salje, Professor EKH |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Earth Sciences |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 June 2001 |
Ends: |
31 May 2005 |
Value (£): |
393,235
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| EPSRC Research Topic Classifications: |
| Chemical Structure |
Instrumentation Eng. & Dev. |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Chemicals |
Electronics |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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We propose constructing an instrument capable of simultaneous X-ray diffraction and conduction calorimetry at temperatures down to around 20 K. It will be used to study the critical phenomena associated with structural, magnetic, and electronic transitions in perovskite-related oxides by simultaneoL measurement of heat effects. The calorimetric technique will be based on conduction calorimetry, allowing scanning to be carried out continuously in cooling and heating experiments at rates as low as 0.05 K per hour, detecting heat effects at a resolution of around 100 nW. Simultaneously, it will be possible to measure changes in micro-elastic strain within the sample using rocking curve techniques to monitor the microscopic and mesoscopic changes in structure by X-ray diffraction. The method will be applied to Mn-bearing perovskite-related materials, as well as archetypal perovskite transitions which display ferroelastic, ferromagnetic, and ferroelectdc behaviour, as well as GMR phenomena. Coupling between these phenomena, cation ordering, charge-ordering and incipient phase segregation processes will be elucidated in a series of model testing experiments.
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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 |