PhD Students
| Contact Email: |
gatcheson01@qub.ac.uk |
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| Extension: |
x1287 |
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| Current Research: |
Research involves examination of current-perpendicular-to-plane tunneling magnetoresistive structures created by DC magnetron sputtering, with emphasis on the oxide barrier layer. |
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| Contact Email: | mdoherty4@qub.ac.uk |
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| Extension: | x1271 |
| Current Research: | My research mainly focuses on biosensing using plasmonic nanostructures, more specifically on surface enhanced Raman scattering (SERS). We use a custom built multi-wavelength excitation Raman spectrometer to measure the SERS enhancement factor across the visible and NIR range on a wide variety of nanostructured surfaces. This wavelength-scanned SERS (WS-SERS) technique, combined with more traditional optical characterisation (transmission, reflection etc.), allows us to probe in detail the effect of nano-geometry on the plasmonic response of a nanostructured surface.
I am also interested in novel guided modes present in plasmonic ‘metamaterials’, and their use in biosensing. |
| Recent Publications: | Combined Antenna and Localised Plasmon Resonance in Raman Scattering from Random Arrays of Silver-Coated, Vertically Aligned Multiwalled Carbon Nanotubes. P Dawson, J. A. Duenas, M. G. Boyle, M. D. Doherty, S. E. J. Bell, A. M .Kern, O. J. L. Martin, A-S. Teh, K. B. K. Teo, W. I. Milne, Nano Letters 11, 365 (2011)
Wavelength Dependence of Raman Enhancement from Gold Nanorod Arrays: Quantitative Experiment and Modelling of a Hot Spot Dominated System. M Doherty, A Murphy, J McPhillips, R J Pollard, P Dawson, Journal of Physical Chemistry C 114, 19913 (2010) |
| Recent News: | Poster Presentation at SSOP2 Porquerolle, France, 3rd to 7th October 2011
Contributed talk at Nanoplasmonic Sensors and Spectroscopy, Chalmers University of Technology, Gothenburg, Sweden, 18th to 22nd September 2011 Contributed talk at Photonics Ireland, Malahide, Ireland, 7th to 9th September 2011 Poster Presentation at Gordon Research Conference on Noble Metal Nanoparticles, South Hadley, MA, USA, 20th to 25th June 2010 |
| Contact Email: |
pa.egan03@gmail.com |
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| Extension: |
x1270 |
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| Current Research: |
ANSIN |
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| Recent Publications: | n/a |
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| Contact Email: |
jeinsle01@qub.ac.uk |
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| Extension: |
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| Current Research: |
Fabrication and Characterization of Novel Plasmonic Devices |
| Recent Publications: | Hybrid FIB milling strategy for the fabrication of plasmonic nanostructures on semiconductor substrates (forthcoming)Optical transmission of periodic annular apertures in metal film on high-refractive index substrate: the role of a nanopillar shape (forthcoming APL) |
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| Contact Email: | devans92@qub.ac.uk |
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| Extension: | x1287 |
| Current Research: | Investigating ferroelectric response to inhomogeneous electric field in BaTiO3, and properties of multiferoic single crystals. |
| Recent Publications: | "Phase diagram and phase transitions in ferroelectric tris-sarcosine calcium chloride and its brominated isomorphs" - Jones, S. P. P.; Evans, D. M.; Carpenter, M. A.; Redfern, S. A. T.; Scott, J. F.; Straube, U.; Schmidt, V. H. - Physical Review B, vol. 83, Issue 9, id. 094102 |
| Recent News: | None |
| Contact Email: |
mhardy06@qub.ac.uk |
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| Extension: |
x1287 |
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| Current Research: |
ANSIN |
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| Recent Publications: | n/a |
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| Contact Email: |
bhill02@qub.ac.uk |
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| Extension: |
x1279 |
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| Current Research: |
Label-free bio-sensing applications using gold nanostructures |
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| Recent Publications: | n/a |
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| Contact Email: |
chill12@qub.ac.uk |
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| Extension: |
x1287 |
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| Current Research: |
ANSIN |
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| Recent Publications: | n/a |
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| Contact Email: |
tiqbal02@qub.ac.uk |
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| Extension: |
n/a |
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| Current Research: |
Laser Light Coupling in HAMR Systems |
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| Recent Publications: | “Characterization of Carbon film by Raman spectroscopy”, Radiation effects and defects in solids (Taylor & Francis), *T. Iqbal, M. Sajjad, M. Imran, M. Sadiq and M. Zakaullah, Vol.164 (03), (2009), 153-161.
“Absolute efficiency calibration of High Purity Germanium (HPGe) detector in the range 120 keV to 8500 keV” Radiation effects and defects in solids (Taylor & Francis), *T. Iqbal, M. U.Rajput, M. Sultan, and M.sajjad. Vol. 164 (11), (2009), 699-711. |
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| Recent News: |
- Awarded DEL/EPSRC studentship for MSC at QUB for 2010-11.
- University studentship for Ph.D from Seagate Project for 2011-13. |
| Contact Email: |
svempati01@qub.ac.uk |
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| Extension: |
x1268 |
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| Current Research: |
Scanning tunnelling microscopy of ZnO films and nanostructures.
Preparation and characterization (Photoluminescence, AFM, IV) of ZnO based solar cells. Also study the Schottky junctions with ZnO (p-type and n-type). |
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| Recent Publications: | Conference - Light emission from the scanning tunnelling microscope. V S Pavan Kumar, J Mitra and P Dawson. Summer School on Plasmonics, Sept 13-17, 2009, Porqueroles, France. |
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| Contact Email: |
mleebody01@qub.ac.uk |
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| Extension: |
x1287
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| Current Research: |
Heusler Alloys and their Application to Next-Generation Spintronic Devices |
| Recent Publications: | None |
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| Contact Email: | raymond.mcquaid@gmail.com |
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| Extension: | x1287 |
| Current Research: | Research focuses on mapping and understanding the manner in which reduced size and increased morphological complexity affect the switching behaviour of meso and nanoscale ferroelectrics. Our approach is to make devices incorporating single crystal ferroelectric material which has been machined to thin film dimensions using Focused Ion Beam milling. Piezoresponse Force Microscopy is used to visualise explicitly the dynamics of domain wall motion during switching. |
| Recent Publications: |
• Domain Wall Propagation in Meso- and Nanoscale Ferroelectrics. R. G. P. McQuaid, M. McMillen, L.-W. Chang, A. Gruverman & J. M. Gregg J. Phys.: Condens. Matter 24, 024204 (2011). • Mesoscale flux-closure domain formation in single crystal BaTiO3. R. G. P. McQuaid, L. J. McGilly, P. Sharma, A. Gruverman & J. M. Gregg Nat. Commun. 2:404 (2011). • The Effect of Antinotches on Domain Wall Mobility in Single Crystal Ferroelectric Nanowires. R. G. P. McQuaid, L.-W. Chang & J. M. Gregg. Nano Lett. 10, 3566-3571 (2010). • The influence of notches on domain dynamics in ferroelectric nanowires. M. McMillen, R. G. P. McQuaid, S. C. Haire, C. D. McLaughlin, L.-W. Chang, A. Schilling & J. M. Gregg. Appl. Phys. Lett. 96, 042904 (2010). |
| Recent News: |
• Contributed talk at APS March Meeting, Boston, U.S.A, 27th Feb - 2nd March 2012. • Poster presentation at ISOE 2011 Corsica, France, 3rd-15th October 2011. • Contributed talk at ISIF 2011 Cambridge, UK, July 31st – Aug 1st 2011. • Poster presentation at EMF 2011 Bordeaux, France, June 26th-July 2nd 2011. • Contributed talk at MRS 2011 San Francisco, U.S.A., 25th-29th April 2011. • Contributed talk at COST SIMUFER ESR workshop, Hasselt, Belgium, 21st-23rd March 2011. • Contributed talk at ISAF-ECAPD, Edinburgh, UK, 9th-12th August 2010. • Contributed talk at Leverhulme Workshop on Nanodomains, Bushmills, N. Ireland, 6th-8th June 2010. • Invited talk (in lieu of J.M. Gregg) at Villa Conference on Complex Oxide Heterostructures (VCCOH), Santorini, Greece, 14th-18th June 2010. |
| Contact Email: |
soreilly13@qub.ac.uk |
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| Extension: |
x1271 |
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| Current Research: |
Completing a PhD as part of the Seagate project in ANSIN. Investigating multilayer materials that act as wideband noise filters in the GHz range for use as zero permeability writer shields in hard-drives. |
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| Contact Email: |
gscheunert01@qub.ac.uk |
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| Extension: |
x2554 |
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| Current Research: |
Part of the Seagate funded ANSIN team which investigates the next generation of read and write head for hard disk drives. My personal task is to fabricate and analyse new high moment materials which may serve as future write head, i.e. which have a strong and stable magnetization (exceeding present iron-cobalt or -nickel alloys) and therefore may serve in heat assisted magnetic recording based devices. |
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