Andrew Evans

Head of The Department of Physics (Professor)

Contact Details

Room Number..........:  2.49
Building....................:  Physical Sciences
Phone.......................:   +44 (0)1970 622800
E-Mail........................:   dne

Biography

Andrew is Professor of Materials Physics and currently Director of the Institute of Mathematics and Physics. Prior to arriving at Aberystwyth, he worked with Prof. J.O. Williams in Wrexham on the characterisation of wide-gap materials and before this with Prof. K. Horn at the Fritz Haber Institute in Berlin, developing synchrotron radiation methods for the study of surfaces and interfaces. He graduated with a first class degree in physics from the University of Wales Cardiff and obtained his PhD in semiconductor physics under the supervision of Prof. R.H. Williams FRS.

Research Groups

Research Interests

  • Carbon-based Materials:

    Andrew’s principal research interests lie in the science and applications of carbon-based materials such as diamond, graphene, SiC, organic semiconductors and bio-molecules. His research group develops and applies imaging and spectroscopic methods to probe the influence of nano-scale physical, electronic and photonic properties on the functionality of materials and devices.

Teaching Areas

Modules Taught

Publications

In Situ Patterning of Ultrasharp Dopant Profiles in SiliconCooil, S. P., Mazzola, F., Klemm, H. W., Peschel, G., Niu, Y. R., Zakharov, A. A., Simmons, M. Y., Schmidt, T., Evans, D., Miwa, J. A. & Wells, J. W. 2017 In : ACS Nano.11, 2, p. 1683-16886 p.
Thickness-dependent electronic structure modulation of ferromagnetic films on shape memory alloy substrates based on a pure strain effectFeng, C., Hu, D., Gong, K., Jiang, X., Yin, J., Cao, Y., Tang, X-L., Yang, F., Zhou, Z., Yu, G. & Evans, D. 2016 In : Applied Physics Letters.109, 21, 212401
Controlling the growth of epitaxial graphene on metalized diamond (111) surfaceCooil, S. P., Wells, J. W., Hu, D., Niu, Y. R., Zakharov, A. A., Bianchi, M. & Evans, D. A. 2015 In : Applied Physics Letters.107, 18, 181603
Graphene coatings for chemotherapy: avoiding silver-mediated degradationMazzola, F., Trinh, T., Cooil, S., Østli, E. R., Høydalsvik, K., Skjønsfjell, E. T. B., Kjelstrup, S., Preobrajenski, A., Cafolla, A. A., Evans, D. A., Breiby, D. W. & Wells, J. W. 2015 In : 2D Materials.2, 2, 025004
One-dimensional spin texture of Bi(441): Quantum spin Hall properties without a topological insulatorBianchi, M., Song, F., Cooil, S., Monsen, A. F., Wahlström, E., Miwa, J. A., Rienks, E. D. L., Evans, D. A., Strozecka, A., Pascual, J. I., Leandersson, M., Balasubramanian, T., Hofmann, P. & Wells, J. W. 2015 In : Physical Review B.91, 16, 165307
Mobility of indium on the ZnO(0001) surfaceHeinhold, R., Reeves, R. J., Williams, G. T., Evans, D. A. & Allen, M. W. 2015 In : Applied Physics Letters.106, 5, 5 p., 051606
Stability of the Surface Electron Accumulation Layers on the Nonpolar (1010) and (1120) Faces of ZnOHeinhold, R., Cooil, S. P., Evans, D. A. & Allen, M. W. 2014 In : Journal of Physical Chemistry C.118, 42, p. 24575-245828 p.
High temperature photoelectron emission and surface photovoltage in semiconducting diamondWilliams, G. T., Cooil, S. P., Roberts, O. R., Evans, S., Langstaff, D. P. & Evans, D. A. 2014 In : Applied Physics Letters.105, 6, 4 p., 061602
Characterization of spray-coating methods for conjugated polymer blend thin filmsNoebels, M., Cross, R. E., Evans, D. A. & Finlayson, C. 2014 In : Journal of Materials Science.49, 12, p. 4279-42879 p.
Influence of polarity and hydroxyl termination on the band bending at ZnO surfacesHeinhold, R., Williams, G. T., Cooil, S. P., Evans, D. A. & Allen, M. W. 2013 In : Physical Review B.88, 23, 9 p., 235315
Transport and optical gaps and energy band alignment at organic-inorganic interfacesEvans, D. A., Vearey-Roberts, A. R., Roberts, O. R., Williams, G. T., Cooil, S. P., Langstaff, D. P., Cabailh, G., McGovern, I. T. & Goss, J. P. 2013 In : Journal of Applied Physics.114, 12, 8 p., 123701
Molecular organization in organic semiconductor thin films observed in real timeEvans, D. A., Roberts, O. R., Vearey-Roberts, A. R., Williams, G. T., Brieva, A. & Langstaff, D. P. 2013 In : Applied Physics Letters.102, 2, 5 p., 021605
Schistosoma mansoni Hemozoin Modulates Alternative Activation of Macrophages via Specific Suppression of Retnla Expression and SecretionTruscott, M., Evans, D. A., Gunn, M. & Hoffmann, K. F. 2013 In : Infection and Immunity.81, 1, p. 133-14210 p.
Iron-mediated growth of epitaxial graphene on SiC and diamondCooil, S. P., Song, F., Williams, G. T., Roberts, O. R., Langstaff, D. P., Jørgensen, B., Høydalsvik, K., Breiby, D. W., Wahlström, E., Evans, D. A. & Wells, J. W. 2012 In : Carbon.50, 14, p. 5099-5105
Development and delivery of an exercise intervention for rheumatoid arthritis: Strengthening and stretching for rheumatoid arthritis of the hand (SARAH) trialHeine, P. J., Williams, M. A., Williamson, E., Bridle, C., Adams, J., O'Brien, A., Evans, D., Lamb, S. E. & SARAH Team 2012 In : Physiotherapy.98, 2, p. 121-13010 p.
A system for real-time in situ photoelectron spectroscopyLangstaff, D. P., Roberts, O. R., Williams, G. T. & Evans, D. A. 2011 Diamond Light Source Proceedings.Vol. 1, p. e111
Detecting sp2-bonded carbon in diamond using optically detected X-ray absorption spectroscopyJones, G. O., Roberts, O. R., Williams, G. T., Langstaff, D. P., Poolton, N. R. J., Martineau, P., Fisher, D., Lawson, S. & Evans, D. A. 2011 Diamond Conference Proceeedings.Vol. 1, p. e131
Characterisation of Organic Semiconductor Growth using Real-time Electron SpectroscopyEvans, D. A., Roberts, O. R., Williams, G. T. & Langstaff, D. P. 2011 MRS Proceedings .Vol. 1318, p. mrsf10-1318-uu09-05
Real-time monitoring of the evolving morphology and molecular structure at an organic-inorganic semiconductor interface: SnPc on GaAs(001)Evans, D. A., Vearey-Roberts, A. R., Roberts, O. R., Brieva, A., Bushell, A., Williams, G. T., Langstaff, D. P., Cabailh, G. & McGovern, I. T. 2010 In : Journal of Vacuum Science & Technology B.28, 4, 7 p., C5F5
High-temperature electronic structure of the diamond (111) surfaceWilliams, G. T., Roberts, O. R., Evans, S., Langstaff, D. P. & Evans, D. A. 2010 Diamond Conference Abstracts 2010.
Diamond-metal contacts: Interface barriers and real-time characterizationEvans, D. A., Roberts, O. R., Williams, G. T., Vearey-Roberts, A. R., Bain, F., Evans, S., Langstaff, D. P. & Twitchen, D. J. 2009 In : Journal of Physics: Condensed Matter.21, 36, 364223
Progress on the Aberystwyth electron counting arrayLangstaff, D. P., Evans, D. A., Roberts, O. R. & Zhu, X. 2009 In : Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.604, 1-2, p. 133-1353 p.
Detecting sp2-bonded carbon in natural and synthetic diamond using Optically-Detected X-ray Absorption SpectroscopyEvans, D. A., Evans, S., Jones, G. O., McGlynn, A. G., Poolton, N. R. J., Roberts, O. R., Williams, G. T., Fisher, D., Lawson, S. & Martineau, P. 2008 Diamond Conference Abstracts.
Determination of the optical band-gap energy of cubic and hexagonal boron nitride using luminescence excitation spectroscopyEvans, D. A., McGlynn, A. G., Towlson, B. M., Gunn, M., Jones, D., Jenkins, T. E., Winter, R. & Poolton, N. R. J. 2008 In : Journal of Physics: Condensed Matter.20, 7, 075233
Direct observation of Schottky to Ohmic transition in Al-diamond contacts using real-time photoelectron spectroscopyEvans, D. A., Roberts, O. R., Vearey-Roberts, A. R., Langstaff, D. P., Twitchen, D. & Schwitters, M. 2007 In : Applied Physics Letters.91, 132114
Locating hexagonal and cubic phases in boron nitride using wavelength-selective optically detected x-ray absorption spectroscopyEvans, D. A., Vearey-Roberts, A. R. & Poolton, N. R. 2006 In : Applied Physics Letters.89, 16
New instrumentation for micro-imaging X-ray absorption spectroscopy using optical detection methodsPoolton, N., Towlson, B. M., Hamilton, B. & Evans, D. A. 2006 In : Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.246, 2, p. 445-4517 p.
Internal structure of copper(II)-phthalocyanine thin films on SiO2/Si substrates investigated by grazing incidence x-ray reflectometryBrieva, A., Jenkins, T., Jones, D. G., Strössner, F., Evans, D. A. & Clark, G. F. 2006 In : Journal of Applied Physics.99, 7, p. 7350473504 p.
Synchrotron-laser interactions in hexagonal boron nitride: an examination of charge trapping dynamics at the boron K-edgeTowlson, B. M., Evans, D. A., Poolton, N. & Hamilton, B. 2006 In : New Journal of Physics.8, 5, p. 7676 p.
A fully integrated multi-channel detector for electron spectroscopyChase, T. R., Evans, D. A., Langstaff, D. & Bushell, A. 2005 In : Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.238, 1-4, p. 219-2235 p.
Synchrotron-laser pump-probe luminescence spectroscopy: Correlation of electronic defect states with x-ray absorption in wide-gap solidsHamilton, B., Poolton, N. & Evans, D. A. 2005 In : Journal of Physics D: Applied Physics.38, 9, p. 1478-14847 p.
Copper phthalocyanine on InSb(111)A—interface bonding, growth mode and energy band alignmentEvans, D. A., Steiner, H. J., Evans, S., Middleton, R., Jones, T. S., Park, S., Kampen, T. U., Zahn, D. R. T., Cabailh, G. & McGovern, I. T. 2003 In : Journal of Physics: Condensed Matter.15, 38, S2729