Selected Publications

Over the period of my career I have been lucky to have worked on a range of areas within magnetism, carbon-based materials (graphene) and liquid crystals. Selected publications are shown below. Please let me know if you are unable to access an article and require a preprint.


Barman, al. 2021. The 2021 Magnonics Roadmap. Journal of Physics: Condensed Matter (10.1088/1361-648X/abec1a)


Askey, J. et al. 2020. Use of Two-Photon Lithography with a Negative Resist and Processing to Realise Cylindrical Magnetic Nanowires. Nanomaterials 10(3), 429 pdf

Hunt, al. 2020. Harnessing multi-photon absorption to produce three-dimensional magnetic structures at the nanoscaleMaterials 13(3), article number: 761. (10.3390/ma13030761)pdf


May, A.  et al. 2019. Realisation of a frustrated 3D magnetic nanowire latticeCommunications Physics 2019, 2, 13  pdf


Sahoo, S. et al. 2018.  Ultrafast Magnetization Dynamics in a Nanoscale Three- Dimensional Cobalt Tetrapod Structure.  Nanoscale, 2018,10, 9981-9986 pdf

Thomas, R .et al. 2018. In-situ fabricated 3D micro-lenses for photonic integrated circuitsOptics Express  26, 13436-13442 (2018) pdf

Williams, G. et al.  Two-photon lithography for 3D magnetic nanostructure fabrication. Nano Research 2018, 11, p 845 pdf


Naisbett-Jones, al. 2017. A magnetic map leads juvenile European eels to the Gulf StreamCurrent Biology 27(8), pp. 1236-1240. (10.1016/j.cub.2017.03.015pdf


Walton, al. 2015. Limitations in artificial spin ice path selectivity: the challenges beyond topological controlNew Journal of Physics 17(1), article number: 013054. (10.1088/1367-2630/17/1/013054)


Ladak, al. 2013. Observation of wrinkle induced potential drops in biased chemically derived graphene thin film networksCarbon 64, pp. 35-44.

Zeissler, al. 2013. The non-random walk of chiral magnetic charge carriers in artificial spin iceScientific Reports 3, article number: 1252. (10.1038/srep01252)


Ladak, al. 2012. Disorder-independent control of magnetic monopole defect population in artificial spin-ice honeycombsNew Journal of Physics 14(4), article number: 045010. (10.1088/1367-2630/14/4/045010)

Branford, al. 2012. Emerging chirality in artificial spin iceScience 335(6076), pp. 1597-1600. (10.1126/science.1211379)


Ladak, al. 2011. Direct observation and control of magnetic monopole defects in an artificial spin-ice materialNew Journal of Physics 13, article number: 063032. (10.1088/1367-2630/13/6/063032)pdf

Gilbertson, al. 2011. Sub-100-nm negative bend resistance ballistic sensors for high spatial resolution magnetic field detectionApplied Physics Letters 98(6), article number: 062106. (10.1063/1.3554427pdf

Ladak, al. 2011. Monopole defects and magnetic Coulomb blockadeNew Journal of Physics 13(2), article number: 023023. (10.1088/1367-2630/13/2/023023pdf


Davidson, al. 2010. Defect trajectories and domain-wall loop dynamics during two-frequency switching in a bistable azimuthal nematic devicePhysical Review E: Statistical, Nonlinear, and Soft Matter Physics 81(5), article number: 051712. (10.1103/PhysRevE.81.051712)

Ladak, al. 2010. Direct observation of magnetic monopole defects in an artificial spin-ice system [Letter]Nature Physics 6(5), pp. 359-363. (10.1038/nphys1628)


Hirohata, al. 2009. Si segregation in polycrystalline Co2MnSi films with grain-size controlApplied Physics Letters 95(25), article number: 252506. (10.1063/1.3276073pdf

Ladak, al. 2009. Magnetic and structural properties of laminated Co65Fe35 filmsJournal of Magnetism and Magnetic Materials 321(8), pp. 996-1000. (10.1016/j.jmmm.2008.03.019)

Ladak, al. 2009. Sidewall control of static azimuthal bistable nematic alignment statesJournal of Physics D: Applied Physics 42(8), article number: 085114. (10.1088/0022-3727/42/8/085114)


Ladak, S., Fernandez-Outon, L. E. and O’Grady, K. 2008. Influence of seed layer on magnetic properties of laminated Co65Fe35 filmsJournal of Applied Physics 103(7), article number: 07B514. (10.1063/1.2832436pdf


Telling, al. 2006. Evidence of a barrier oxidation dependence on the interfacial magnetism in Co/alumina based magnetic tunnel junctionsJournal of Applied Physics 99(8), article number: 08E505. (10.1063/1.2171002pdf


Ladak, S. and Hicken, R. J. 2005. Evidence for hot electron magnetocurrent in a double barrier tunnel junction deviceApplied Physics Letters 87(23), article number: 232504. (10.1063/1.2140480pdf

Ladak, S. and Hicken, R. J. 2005. Origin of large magnetocurrent in three-terminal double-barrier magnetic tunnel junctionsJournal of Applied Physics 97(10), article number: 104512. (10.1063/1.1905790pdf

Keatley, al. 2005. Use of microscale coplanar striplines with indium tin oxide windows in optical ferromagnetic resonance measurementsJournal of Applied Physics 97(10), article number: 10R304. (10.1063/1.1849071pdf


Telling, al. 2004. Spin polarization and barrier-oxidation effects at the Co/alumina interface in magnetic tunnel junctionsApplied Physics Letters 85(17), pp. 3803-3805. (10.1063/1.1812383pdf


Hicken, al. 2003. Optical ferromagnetic resonance studies of thin film magnetic structuresJournal of Physics D: Applied Physics 36(18), pp. 2183-2192. (10.1088/0022-3727/36/18/002)

3D Nanomagnetism Lab, Department of Physics and Astronomy, Cardiff University