Ewch i’r prif gynnwys

Yr Athro David Jesson

Chair of Experimental Physics & Marie Curie Fellow

Ysgol Ffiseg a Seryddiaeth

Email:
jessonde@cardiff.ac.uk
Telephone:
+44 (0)29 2087 0225
Location:
N/0.09, Adeiladau'r Frenhines - Adeilad y Gogledd, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
I obtained my B.Sc (Hons) and PhD in Physics from Bristol University before joining the CSIR in South Africa where I developed convergent beam electron diffraction techniques to study crystal defects and became National Advisor on high-resolution electron microscopy. In 1989 I moved to Oak Ridge National Laboratory (USA) as a Staff Scientist and co-developed atomic resolution Z-contrast imaging with Dr. Steve Pennycook. During this period I was one of the first researchers to pioneer the field of strained layer self-assembly and quantum dot formation to which entire symposia at major materials conferences are now devoted. In 2000 I moved to Heriot-Watt University (Edinburgh) as a Reader in Physics to establish a nanodynamics group which focussed on the role of misfit strain in the self-organisation of quantum dot systems. In 2003 I then moved to Monash University in Melbourne, Australia as Professor of Physics and Deputy Head of School to create a cutting-edge low energy electron microscopy (LEEM) research group. This led to the development of Lloyd’s Mirror PEEM which facilitates the extraction of 3D information from 2D images and the first movies of Ga droplet dynamics which has elucidated a new driving force for motion during evaporation. In 2013 I became Chair of Experimental Physics and a Marie Curie Fellow at Cardiff University where my research group is applying LEEM to study quantum structure formation and dynamics.

Anrhydeddau a Dyfarniadau

I have presented over 50 invited lectures at major international conferences, chaired numerous sessions and organised several symposia for the American Physical Society and the Materials Research Society. I have been a member of a number of societies during my career including the American Physical Society (APS), American Association for Crystal Growth (AACG), The Metals, Minerals, and Materials Society (TMS), Materials Research Society (MRS) and the Australian Institute of Physics (AIP).

I have received numerous awards and prizes including the ORNL Publication Award and the EMSSA Microstructure Award for innovative technique development in electron microscopy. I have served as Guest Editor for the Ultramicroscopy LEEM/PEEM-8 Workshop Proceedings and a Micron Special Edition on the Microscopy of Semiconductor Growth Processes. I have co-edited a MRS Proceedings on Evolution of Epitaxial Structure and Morphology, served on the Editorial Board of Micron and frequently review proposals for funding agencies including NSF, DOE and EPSRC.

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Research interests

My research is internationally recognised for the combination of cutting-edge electron microscopy techniques and theoretical modelling to investigate semiconductor nanostructures and thin film growth mechanisms. My most recent work has focused on nanodynamics and the design and application of a III-V surface electron microscope which is having a major impact on our understanding of how compound semiconductor materials and quantum structures grow. We have obtained the first experimental movies of how such structures form under arsenic flux and the Cardiff III-V low energy electron microscope (LEEM) is the only instrument in the world with this capability. In addition to state-of-the-art experiments, we have also developed a parallel program focused on the physics of LEEM imaging which has allowed us to quantify our movies and develop new techniques for extracting 3D information from them which was previously assumed impossible.