Skip to main content Skip to navigation

Dr Daniel Brunt


Supervised by Dr Oleg Petrenko

Research Interests

I became interested in frustrated magnetism through my final year project with Dr Oleg Petrenko. I was working on Barium Rare-earth oxides (BaR2O4), the R ions form a network of hexagons and triangles. The frustration in these structures arises due to the chain of edge sharing triangles formed by the RE ions.

During my Ph.D. I investigated the rare earth tetraborides (RB4), which crystallise in a tetragonal structure. The R ions form an array of squares and triangles which is topologically equivalent to the Shastry-Sutherland lattice. This is one of the rare examples of the Shastry-Sutherland lattice being experimentally realised. The competition between magnetic and quadrupolar interactions present in the material leads to a number of novel and unusual properties to arise.


  • D. Brunt, G. Balakrishnan, A. R. Wildes, B. Ouladdiaf, N. Qureshi, and O. A. Petrenko, Phys. Rev. B 95 024410 (2017).
  • O. A. Petrenko, O. Young, D. Brunt, G. Balakrishnan, P. Manuel, D. D. Khalyavin, and C. Ritter Phys. Rev. B 95 104442 (2017).
  • D. Brunt, G. Balakrishnan, D. A. Mayoh, M. R. Lees, D. Gorbunov, N. Qureshi, and O. A. Petrenko, Scientific Reports 8, 232 (2018).

Ph.D. Thesis

Magnetic properties of frustrated Shastry-Sutherland magnets; rare earth tetraborides: Download Thesis.

Conferences Attended

Poster Presentations
  • Highly Frustrated Magnetism (HFM) "Characterisation and Crystal Growth of Rare-Earth Tetraborides", Cambridge (2014)
  • Frontiers of Unconventionial Superconductivity and Magnetism (FUSM) "Magnetic Properties of Frustrated Shastry-Sutherland Magnets, the Rare Earth Tetraboride" Bristol (2015)
  • European Conference for Neutron Scattering (ECNS) "Magnetic Structure of Frustrated Shastry-Sutherland Magnets, Neodymium Tetraboride" Zaragoza (2015)
  • Neutron Muon User Meeting (NMUM) "Magnetic Structure of the Shastry-Sutherland Magnet; Neodymium Tetraboride" Warwick (2017)
  • 2nd ISIS Strudent Meeting "Magnetic Excitation in the Rare Earth Tetraborides" Abingdon (2015)
  • Magnetism "Field Induced Incommensurate Magnetic Structure in Holmium Tetraboride" Sheffield (2016)
  • Theoretical and Experimental Magnetism Meeting (TEMM) "Magnetic Structure of the Shastry-Sutherland Magnet; Neodymium Tetraboride" Abingdon (2017)

Courses Taken

EX3: Crystallography
NS1: Introduction to Surfaces and Thin Films
Introduction to Microscopy (Warwick)
Introduction to COMSOL Multiphysics (Coventry)
ISIS Neutron Training School 2014 (ISIS, Oxford)
FullProf School 2015 (ILL, Grenoble)

Teaching Duties

Marker - 2nd Year Physics Teaching Laboratory (P4)

Current Role

Higher Research Scientist - National Physical Laboratory


For information about Dan's work at Warwick please write to:

Dr Oleg Petrenko
Department of Physics
University of Warwick
Coventry CV4 7AL
United Kingdom

Dan's Contact Details

Web Page at NPL

E-Mail daniel.brunt(at)