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STEM Faculty

Meet the people who make up STEM Faculty.

Andrey Umerski

Andrey Umerski

Senior Lecturer

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mathematics-and-statistics

Professional biography

I am a senior lecturer in the School of Mathematics and Statistics. 

I studied at Lancaster University, Cambridge University and Kings College London.  I subsequently enjoyed a number of research posts at Exeter University, City University London and Imperial College London, before joining the Open University in 2001.

Research interests

My current research interest is in the area of spintronics, and involves the theoretical and computational modelling of magnetic multilayers and other nanostructures.

In particular, I am interested in electronic quantum effects exhibited by spin and charge transport through these structures. This includes magnetic exchange coupling, various types of magneto-resistance behaviour, magnetocrystalline anisotropy and a variety of mechanisms to effect magnetic switching.

Teaching interests

I am currently module team chair for M833, and am chairing the refresh of MST224 and the production of a new module, MST225, for first presentation in 2028.

In the past, I have written course texts for MS324, MS325, MST224, MST125 and MS327 and assessment materials for MST210.

 

Impact and engagement

My research is in a highly applicable area of mathematics and has contributed to the development of the modern day hard disk.  I am particularly interested in the way that electron spin can be used to transmit information and manipulate nanoscopic devices, with application to the real world.  An article based on some of my research was recently featured in 'UK Success Stories in Industrial Mathematics', Springer 2016, ISBN-10: 3319254529.

External collaborations

I have enjoyed fruitful collaboratorations with a large number of colleagues in Japan, Brazil, Poland and the UK.

Latest publications

Displaying 10 of 17 publications

  • Azzawi, S., Umerski, A., Sampaio, L. C., Bunyaev, S., Kakazei, G. N. and Atkinson, D., 2023, ‘Synthetic route to low damping in ferromagnetic thin-films’, APL Materials, 11(8), https://oro.open.ac.uk/91313/.
  • Barati, E., Cinal, M., Edwards, D. M. and Umerski, A., 2014, ‘Gilbert damping in magnetic layered systems’, Physical Review B, 90(1), https://oro.open.ac.uk/40624/.
  • Autes, G., Mathon, J. and Umerski, A., 2012, ‘Reflection mechanism for generating spin transfer torque without charge current’, Journal of Applied Physics, 111(5), https://oro.open.ac.uk/33152/.
  • Autes, G., Mathon, J. and Umerski, A., 2011, ‘Oscillatory behavior of tunnel magnetoresistance in a magnetic tunnel junction with varying magnetic layer thickness’, Physical Review B, 84, https://oro.open.ac.uk/29784/.
  • Autès, G., Mathon, J. and Umerski, A., 2011, ‘Theory of ultrahigh magnetoresistance achieved by k-space filtering without a tunnel barrier’, Physical Review B (Condensed Matter and Material Physics), 83(5), https://oro.open.ac.uk/28274/.
  • Autès, G., Mathon, J. and Umerski, A., 2010, ‘Theory of tunneling magnetoresistance of Fe/GaAs/Fe(001) junctions’, Physical Review B, 82(11), https://oro.open.ac.uk/25062/.
  • Autès, G., Mathon, J. and Umerski, A., 2010, ‘Asymptotic behavior of tunneling magnetoresistance in epitaxial MgO tunnel junctions’, Physical Review B, 82(5), https://oro.open.ac.uk/22940/.
  • Autès, G., Mathon, J. and Umerski, A., 2010, ‘Strong enhancement of the tunneling magnetoresistance by electron filtering in an Fe/MgO/Fe/GaAs(001) junction’, Physical Review Letters, 104(21), https://oro.open.ac.uk/22418/.
  • Wessely, O., Umerski, A. and Mathon, J., 2009, ‘Theory of spin-transfer torque in the current-in-plane geometries’, Physical Review B, 80(1), https://oro.open.ac.uk/18022/.
  • Autes, G., Mathon, J. and Umerski, A., 2009, ‘Theory of resonant spin-dependent tunneling in an Fe/Ag/MgO/Fe(001) junction’, Physical Review B, 80(2), https://oro.open.ac.uk/18020/.
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