Senior Scientist, Materials Science Division, Argonne National Lab; and Professor, Materials Science and Engineering Department

BSc, Physics, University College London, 1981
DPhil, 1985, University of Oxford

Contact info

 

The research in my group concentrates on understanding the behavior of magnetic, ferroelecctric and multiferroic oxide nanostructures, and in particular on determining the role that interfaces play in controlling this behavior. We are correlating the ferroic and transport properties with microstructure, magnetic domain structure and composition profile, determined using a range of high-resolution electron-microscopy, atomic force microscopy and position-sensitive atom probe techniques, including Lorentz microscopy for imaging magnetic domains and piezoforce microscopy for imaging ferroelectric domains. We are also developing in-situ TEM techniques for the investigation of magnetization reversal and transport behavior.

Associations and Awards

Visiting Professor, Hong Kong Chinese University (2001)

Wohlfarth lecture prize (2003)

Fellow of the Royal Academy of Engineering (elected 2005)

Emile Chamot medal for contributions to chemical microscopy (State Microscopical Society of Illinois, 2006)

Advisory Editor, Journal of Magnetism and Magnetic Materials

Member of IEEE Transactions on Magnetics Publications Committee

Selected Publications

X Y Dong, C Adelmann, J Q Yie, C J Palmstrom, X Lou, J Strand, P A Crowell, J P Barnes and A K Petford-Long, “Spin injection from the Heusler alloy Co₂MnGe into Al_0.1Ga_0.9As/GaAs heterostructures”, Appl. Phys. Lett. 86, 102107-1–102107-3 (2005).

A K Petford-Long, D J Larson, Y Q Ma, A Cerezo, E W Singleton and B W Karr, “The formation mechanism of aluminium oxide tunnel barriers: three-dimensional atom probe analysis”, J. Appl. Phys. 98, 124904-1–124904-6 (2005).

T J Bromwich, T Kasama, R K K Chong, R E Dunin-Borkowski, A K Petford-Long, O Heinonen and C A Ross, “Remanent magnetic states and interactions in nano-pillars”, Nanotechnology 17, 4367–4373 (2006).

A S Eggeman, P J Dobson and A K Petford-Long, “Optical spectroscopy and energy-filtered TEM of surface plasmons in core-shell nanoparticles”, J. Appl. Phys. 101, 024307 (2007).

A K Petford-Long and A N Chiaramonti, “Transmission electron microscopy of multilayer thin films”, Annu Rev. Mater. Res. 38, 559–584 (2008).

O Heinonen, D K Schreiber and A K Petford-Long, “Micromagnetic modelling of spin-wave dynamics in exchange-biased Permalloy disk”, Phys. Rev. B 76, 144407 (2007).

 A N Chiaramonti, L J Thompson, W F Egelhoff, B C Kabius and A K Petford-Long, “In situ TEM studies of local transport and structure in nanoscale multilayer films”, Ultramicrosc. Doi:10.1016/j.ultramic.2008.04.008 (2008).

S Pinitsoontorn, A Cerezo, A K Petford-Long, D Mauri, L Folks and M J Carey, “Three-dimensional atom probe investigation of boron distribution in CoFeB/MgO/CoFeB magnetic tunnel junctions”, Appl. Phys. Lett. 93, 071901 (2008).