| EPSRC Reference: |
GR/N66810/01 |
| Title: |
AB-INITIO THEORY OF MAGNETIC ANISOTROPHY IN TRANSITION METAL FERROMAGNETS |
| Principal Investigator: |
Staunton, Professor JB |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Warwick |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
15 May 2001 |
Ends: |
14 May 2004 |
Value (£): |
125,288
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| EPSRC Research Topic Classifications: |
| Magnetism/Magnetic Phenomena |
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Summary on Grant Application Form |
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A theory would be developed for the temperature dependence of the magnetic anisotropy (MCA) in transition metals and alloys in bulk and thin film form. The theory would be applied initially to elemental metals magnets to extract the temperature dependence of the anisotropy constants. In parallel with this work, a study of the effect of both compositional order and tetragonal strain upon the magnetic anisotropy of a series of important transition metal alloys would be made. These results would be analysed for the key electronic factors that influence both magnetic anisotropy and magnetostriction. Electronic structure in the vicinity of the Fermi energy would be particularly important. As a test for the usefulness of these electronic factors for magnetic material design, their inferences would be compared with a detailed case study of permalloy doped with Cu or Mo. The composition and degree of atomic short-range order which minimise both the MCA and the magnetostriction would be determined. These would indicate the conditions for maximum magnetic permeability. Finally the effect of atomic short-range order on the perpendicular magnetic anisotropy of thin films of a couple of the alloy systems would be studied to determine surface and interface effects.
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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.warwick.ac.uk |