| EPSRC Reference: |
GR/M23540/01 |
| Title: |
SINGLE ELECTRON EFFECTS IN MAGNETIC TUNNEL JUNCTIONS |
| Principal Investigator: |
Hickey, Professor B |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics and Astronomy |
| Organisation: |
University of Leeds |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 April 1999 |
Ends: |
30 June 2001 |
Value (£): |
58,882
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| EPSRC Research Topic Classifications: |
| Magnetism/Magnetic Phenomena |
Materials Synthesis & Growth |
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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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This application is for funding to employ Dr Chris Marrows as a PDRA for tow years to work on the Leeds sputtering facility. We will investigate (1) the effects of exchange biasing between antiferromagnets (AF) and ferromagnets (F), (2) develop spin-valve tunnel junctions and (3) perform point-contact measurements on ultrasmall magnetic grains embedded in insulators. It has recently been proposed that the spin interactions between AF and F layers are long range an can be transmitted through noble metals. Our preliminary results suggest otherwise and we want to resolve this question by examining the role of (i) pinholes in the noble metal, (ii) electron channelling in the noble metal and (iii) compensated v. uncompensated AF surfaces. Much has been made of spin-electronics recently but results are only slowly appearing. In collaboration with TU Delft we are ideally paced to make significant progress in developing prototype spin transistors. We have been fabricating point-contacts by lithography and growing material by sputtering and MBE to study hot-electron transport. we now want to turn these techniques to growing spin-valve tunnel junctions to investigate for example, the recently predicted oscillations in the tunnelling current due to single electron charging of a ferromagnetic grain in the insulator.
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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.leeds.ac.uk |