About Me

I completed a Master of Physics (MPhys) degree at the University of Warwick in 2017.

I completed my PhD researching Skyrmionic materials, including materials which have previously been identified to exhibit skyrmionic behaviour, as well as exploring new materials which may exhibit this behaviour under the supervision of Prof. Geetha Balakrishnan.

Courses Taken

PX446 Condensed Matter Physics II, Topas Rietveld Refinement School, Python MPAGS.

Teaching Duties

I demonstrated the X-ray diffraction experiment in the first year undergraduate laboratory.

PhD Thesis

Structure and Magnetism of Skyrmion Hosting Materials (click here for pdf - 170 MB)

Papers

Hicken T.J., Holt S.J.R., Franke K. J. A., Hawkhead Z., Štefančič A., Wilson M. N., Gomilšek M., Huddart B. M., Clark S. J., Lees M. R., Pratt F. L., Blundell S. J., Balakrishnan G., Lancaster T., 2020 Magnetism and Néel skyrmion dynamics in GaV₄S_8-ySe_y Physical Review Research 2, 032001(R)

Štefančič A., Holt S.J.R., Lees M.R., Ritter C., Gutmann M.J., Lancaster T., Balakrishnan G., 2020. Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV₄S_8-ySe_y Scientific Reports 10, 9813

Štefančič A., Moody S.H., Hicken T.J., Birch M.T., Balakrishnan G., Barnett S.A., Crisanti M., Evans J.S.O., Holt S.J.R., Franke K.J.A. and Hatton P.D., Huddart B.M., Lees M.R., Pratt F.L., Tang C.C., Wilson, M.N., Xiao F., Lancaster T., 2018. Origin of skyrmion lattice phase splitting in Zn-substituted Cu₂OSeO₃. Physical Review Materials 2, 111402.

Holt S.J.R., C. Ritter, C. Lees M. R., and Balakrishnan G. Investigation of the magnetic ground state of GaV₄S₈ using powder neutron diffraction, Journal of Physics: Condensed Matter 33, 255802 (2021).

Seddon S. D., Dogaru D. E., Holt S.J.R., Rusu D., Peters J. J. P., Sanchez A. M., and Alexe M., Real-space observation of ferroelectrically induced magnetic spin crystal in SrRuO₃, Nature Communications 12 2007 (2021).

Address:

Sam Holt
Superconductivity and Magnetism Group (Room P156)
Department of Physics
University of Warwick
Coventry CV4 7AL

E-Mail:

S dot J dot R dot Holt at warwick dot ac dot uk

Tel:

+44 (0)24 765 22382