Projects per year
Abstract
We present a first principles investigation into the electronic properties of an extended interface between rutile TiO2 and Cu. We show that owing to the highly polarizable nature of TiO2, the interface is unstable to the spontaneous formation of small electron polarons at the interface. The resulting dipole leads to an increase in the conduction band offset by 0.4 eV and the presence of a band of occupied states related to Ti d states 1.4 eV below the Fermi energy. This effect should be expected more generally at interfaces between highly polarizable oxides and metals but is missed by standard first principles approaches. Given the ubiquitous nature of such interfaces, this previously overlooked effect may have important implications for diverse applications across science and technology.
Original language | English |
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Article number | 155147 |
Pages (from-to) | 1-5 |
Number of pages | 5 |
Journal | Physical Review B |
Volume | 94 |
DOIs | |
Publication status | Published - 27 Oct 2016 |
Bibliographical note
© 2016, The Author(s).Projects
- 2 Finished
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Non-equilibrium electron-ion dynamics in thin metal-oxide
McKenna, K. P. (Principal investigator)
1/01/13 → 30/04/18
Project: Research project (funded) › Research
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Award of computational time on the national supercomputer
McKenna, K. P. (Principal investigator)
1/11/11 → 31/01/16
Project: Other project › Miscellaneous project
Datasets
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Effect of polaronic charge transfer on band alignment at the Cu/TiO2 interface
McKenna, K. P. (Creator), University of York, 2016
DOI: 10.15124/40d9456a-9821-4c81-b336-00287058b2e5
Dataset