| EPSRC Reference: |
EP/L013010/1 |
| Title: |
Physics of graphene/hexagonal boron nitride heterostructures |
| Principal Investigator: |
Mucha-Kruczynski, Dr M |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Bath |
| Scheme: |
First Grant - Revised 2009 |
| Starts: |
01 December 2013 |
Ends: |
30 November 2015 |
Value (£): |
63,322
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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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| Panel History: |
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Summary on Grant Application Form |
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At the foundation of electronics lies the observation that energies of electrons travelling in materials with regular, periodic arrangement of atoms are quantized and restricted to electronic bands. This way, depending on the arrangement of those bands and experimental conditions, some materials conduct and some are insulating. At the same time, we know that another quantizing restriction on the energy of a travelling charged particle can be imposed with magnetic field. Very interesting physics has been predicted for the situation in which those two effects compete with similar strength and the formation of bands interplays with that of magnetic levels, leading to a self-repetitive pattern bearing likeness to self-similar patterns on leaves or those formed by snowflakes. Unfortunately, such electronic band structure patterns remained elusive due to the conditions on the periodicity of the system and magnetic field that need to be fulfilled simultaneously. Recently, it has been shown that the electronic band structure in sandwiches made of graphene and hexagonal boron nitride, two atomically thin materials, becomes such a self-similar pattern. This is because, apart from regular arrangement of atoms within each of the materials, another periodicity known as moiré arises due to complicated overlay between the two atomic layers and can be probed thanks to the outstanding quality of those materials. In this project, I will investigate the electronic properties of graphene/hexagonal boron nitride systems in order to understand the interplay between periodicity and magnetic field quantizations in those structures. I will explore theoretically the result of manipulating the latter by rearranging the layers with respect to each other and suggest what experimental tools give the fullest knowledge of the physics at play. Finally, I will model the self-similar electronic band structure formed in external magnetic field and explore the fascinating physics it is describing.
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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.bath.ac.uk |