Dr Mervyn Roy

Associate Professor, SFHEA, UDTF



S6, Physics Building

Department of Physics and Astronomy,
University of Leicester,
University Road, Leicester, LE1 7RH.

Email: mr6@
Tel: +44 (0)116 252 3582


Personal details

I graduated from the University of Leicester in 1995 with a first class BSc degree in Physics, winning the departmental prize for best student in my second and third years.

I then stayed on at Leicester to study for a PhD in Many-electron effects in the X-ray absorption fine structure under the supervision of Dr S. J. Gurman. From 1999 to 2006, I was employed as a post-doctoral research associate in the department, first working on self-assembled semiconductor quantum dots, and then on carbon nanotube quantum dots. During my time as a post-doctoral researcher (1999-2002) I taught modules in Thermodynamics (PA1120) and Mathematical Physics (PA1710).

I was appointed as a Lecturer in July 2006 and promoted to Senior Lecturer (now called Associate Professor) in 2014.


In 2020/21, I am module leader for

  • PA2710 Waves and Fields
  • PA3210 Quantum Mechanics
  • PA4601 Quantum Theory of Solids
  • PA4980 Physics Special Topics
  • PA2010, PA4010

I also teach part of PA2260 Relativity, quantum physics and particles, and supervise the C-programming component of PA2900. I regularly supervise year-3 and 4 research projects and advanced study projects.

Since 2015/16 I have been one of two Programme Directors for the undergraduate degree programmes in physics with responsibility for the student experience.

In 2015/16, I was the Senior Tutor in the department.

From 2009 to 2014 I was the Head of Admissions in the department.

In July 2013, I was awarded a University of Leicester Teaching Fellowship for my 'proactive, empathetic and innovative contributions to the teaching and student support activities of the Department of Physics and Astronomy.'

In February 2013, I was made a Fellow of the Higher Education Academy (UKPSF 2)

In October 2017, I was made a Senior Fellow of the Higher Education Academy (UKPSF 3). In 2018 I was formally commended by the Leicester Learning Institute in recognition of "the quality of my application for HEA fellowship".

In 2020 I moved from a Teaching and Research contract to a Teaching Focussed contract.

Selected publications

  • Incorporation of Bi atoms in InP studied at the atomic scale by cross-sectional scanning tunneling microscopy. C. M. Krammel, Mervyn Roy, F. J. Tilley, P. A. Maksym, L. Y. Zhang, P. Wang, K. Wang, Y. Y. Li, S. M. Wang, and P. M. Koenraad, Phys. Rev. Materials 1, 034606 (2017)
  • Scanning tunnelling microscopy contrast of isovalent impurities on the GaAs (110) surface explained with a geometrical model. F. J. Tilley, Mervyn Roy, P. A. Maksym, P. M. Koenraad, C. M. Krammel, and J. M. Ulloa, Phys. Rev. B 93, 035313 (2016).
  • Reading and writing charge on graphene devices. M. R. Connolly, E. D. Herbschleb, R. K. Puddy, M. Roy, D. Anderson, G. A. C. Jones, P. Maksym and C. G. Smith, Appl. Phys. Letts 101, 023505 (2012).
  • Effective mass theory of interacting electron states in semiconducting carbon nanotube quantum dots. M. Roy and P. A. Maksym, Phys. Rev. B 85, 205432 (2012).
  • Generalized effective-mass theory of subsurface scanning tunneling. M. Roy, P. A. Maksym, D. Bruls, P. Offermans and P. M. Koenraad, Phys. Rev. B 82, 195304 (2010).
  • Magnetic field induced confinement-deconfinement transition in graphene quantum dots. G. Giavaras, P. A. Maksym, M. Roy, J. Phys.: Condens. Matter 21, 102201 (2009).
  • Enhanced donor binding energy close to a semiconductor surface. A. P. Wijnheijmer, J.K. Garleff, K. Teichmann, M. Wenderoth, S. Loth, R. G. Ulbrich, P. A. Maksym, M. Roy and P. M. Koenraad, Phys. Rev. Lett. 102, 166101 (2009).


My research interests are focused mainly on the theory of quantum dots; I am currently working on carbon nanotube quantum dot devices and on graphene quantum dots.

I also have long standing interests in scanning tunnelling microscopy and x-ray absorption spectroscopy. In addition to my work on artificial atoms, I am working on graphene photodetectors with colleagues from the space research centre.

I am experienced with effective mass, tight-binding, and ab-initio DFT electronic structure calculations for a variety of different systems.

I have over 20 years experience of code development, and more than 15 years experience in X-ray absorption spectroscopy.

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Contact Details

Tel.: +44 (0)116 252 3506
Fax: +44 (0)116 252 2770

Department of Physics & Astronomy,
University of Leicester,
University Road,
Leicester, LE1 7RH,
United Kingdom.


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