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Reference Number EP/K016709/1
Title Fermi Surface Reconstruction in Cuprate High Temperature Superconductors
Status Completed
Energy Categories Not Energy Related 50%;
Other Power and Storage Technologies(Electricity transmission and distribution) 25%;
Other Power and Storage Technologies(Energy storage) 25%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Physics) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Professor A Carrington
No email address given
University of Bristol
Award Type Standard
Funding Source EPSRC
Start Date 31 August 2013
End Date 28 February 2017
Duration 42 months
Total Grant Value £615,454
Industrial Sectors No relevance to Underpinning Sectors
Region South West
Programme NC : Physical Sciences
Investigators Principal Investigator Professor A Carrington , Physics, University of Bristol (99.999%)
  Other Investigator Professor NE Hussey , Physics, University of Bristol (0.001%)
  Industrial Collaborator Project Contact , Le Centre national de la recherche scientifique (CNRS), France (0.000%)
Project Contact , Curtin University of Technology, Australia (0.000%)
Web Site
Abstract Superconductors have the potential to revolutionise the way the world uses electricity. There are already many practical applications of these materials, ranging from energy transport to uses in medical diagnosis, communications and mass people transport. However for more wide-ranging impact we need to discover materials which have even better properties than are already known today. In order to tune these properties and to guide the search for new materials, knowledge of the fundamental physical reasons why these materials are superconducting is highly desirable. Although this is known for so-called conventional materials, mostly discovered before 1980, an understanding of the superconducting mechanism responsible for copper oxide based high temperature superconductivity, discovered in 1986, is still lacking. The research in this proposal aims to advance our understanding of the electronic structure of copper oxide high-temperature superconductors. We believe this knowledge will provide a major step forward in the world-wide quest to understand and hence improve these materials.We are proposing a wide ranging programme which will study the thermodynamic and quantum coherent properties of extremely well ordered samples of these materials. In less well ordered samples, the signatures of the fundamental symmetry-breaking phase transitions may be smeared out, making them invisible to experiment. Also quantum coherence effects which give unique information about the electronic structure are made unobservable by disorder. We will use techniques developed over the last twenty years to grow highly ordered single crystal samples and study their behaviour under the world's highest available magnetic fields of up to 100 T (which is roughly 2 million times larger than the earth's field) at temperatures less than one degree above absolute zero. From these measurements we will discover how the Fermi surface, which characterises the momentum distribution of the current carrying electrons in the material, evolves with electron concentration. This will give unique and important information to guide the development of a theory of superconductivity in these materials
Publications (none)
Final Report (none)
Added to Database 23/09/13