Outputs (99)

Interface enhanced precessional damping in spintronic multilayers: A perspective (2022)
Journal Article
Swindells, C., & Atkinson, D. (2022). Interface enhanced precessional damping in spintronic multilayers: A perspective. Journal of Applied Physics, 131(17), Article 170902. https://doi.org/10.1063/5.0080267

In the past two decades, there have been huge developments in the understanding of damping in multilayered thin films and, more generally, in spin-transport in spintronic systems. In multilayered ferromagnetic (FM)/non-magnetic (NM) thin-film systems... Read More about Interface enhanced precessional damping in spintronic multilayers: A perspective.

Magnetic damping in ferromagnetic/heavy-metal systems: The role of interfaces and the relation to proximity-induced magnetism (2022)
Journal Article
Swindells, C., Głowiński, H., Choi, Y., Haskel, D., Michałowski, P., Hase, T., Stobiecki, F., Kuświk, P., & Atkinson, D. (2022). Magnetic damping in ferromagnetic/heavy-metal systems: The role of interfaces and the relation to proximity-induced magnetism. Physical Review B, 105(9), Article 094433. https://doi.org/10.1103/physrevb.105.094433

Damping and spin transport in spintronic multilayered systems continues to be a topic of active research. The enhancement of damping in ferromagnet (FM)/spacer layer (SL)/heavy-metal (HM) thin-film systems was studied for Co 25 Fe 75 / SL / Pt with a... Read More about Magnetic damping in ferromagnetic/heavy-metal systems: The role of interfaces and the relation to proximity-induced magnetism.

Proximity induced magnetism and the enhancement of damping in ferromagnetic/heavy metal systems (2021)
Journal Article
Swindells, C., Głowiński, H., Choi, Y., Haskel, D., Michałowski, P., Hase, T., Kuświk, P., & Atkinson, D. (2021). Proximity induced magnetism and the enhancement of damping in ferromagnetic/heavy metal systems. Applied Physics Letters, 119(15), Article 152401. https://doi.org/10.1063/5.0064336

The relationship between proximity induced magnetism (PIM) at the heavy metal/ferromagnet interface and spin-transport across such interfaces has generated significant debate. To investigate the link between the two, element specific X-ray magnetic c... Read More about Proximity induced magnetism and the enhancement of damping in ferromagnetic/heavy metal systems.

Optical properties and carrier dynamics in Co-doped ZnO nanorods (2020)
Journal Article
Sivan, A. K., Galán-González, A., Di Mario, L., Tappy, N., Hernández-Ferrer, J., Catone, D., Turchini, S., Benito, A. M., Maser, W. K., Steinvall, S. E., Fontcuberta i Morral, A., Gallant, A., Zeze, D. A., Atkinson, D., & Martelli, F. (2021). Optical properties and carrier dynamics in Co-doped ZnO nanorods. Nanoscale Advances, 3(1), 214-222. https://doi.org/10.1039/d0na00693a

The controlled modification of the electronic properties of ZnO nanorods via transition metal doping is reported. A series of ZnO nanorods were synthesized by chemical bath growth with varying Co content from 0 to 20 atomic% in the growth solution. O... Read More about Optical properties and carrier dynamics in Co-doped ZnO nanorods.

Proximity-induced magnetism in Pt layered with rare-earth–transition-metal ferrimagnetic alloys (2020)
Journal Article
Swindells, C., Nicholson, B., Inyang, O., Choi, Y., Hase, T., & Atkinson, D. (2020). Proximity-induced magnetism in Pt layered with rare-earth–transition-metal ferrimagnetic alloys. Physical Review Research, 2(3), Article 033280. https://doi.org/10.1103/physrevresearch.2.033280

The proximity-induced moment (PIM) in heavy metal layers may play a significant role in heterostructured spintronic systems. In particular, the PIM of a heavy metal adjacent to a magnetic layer has been linked to interfacial spin transport behavior.... Read More about Proximity-induced magnetism in Pt layered with rare-earth–transition-metal ferrimagnetic alloys.

Cobalt-Doped ZnO Nanorods Coated with Nanoscale Metal-Organic Framework Shells for Water-Splitting Photoanodes (2020)
Journal Article
Galan Gonzalez, A., Sivan, A. K., Hernández Ferrer, J., Bowen, L., Di Mario, L., Martelli, F., Benito, A. M., Maser, W. K., Chaudhry, M. U., Gallant, A., Zeze, D. A., & Atkinson, D. (2020). Cobalt-Doped ZnO Nanorods Coated with Nanoscale Metal-Organic Framework Shells for Water-Splitting Photoanodes. ACS Applied Nano Material, 3(8), 7781-7788. https://doi.org/10.1021/acsanm.0c01325

Developing highly efficient and stable photoelectrochemical (PEC) water splitting electrodes via inexpensive, liquid phase processing is one of the key challenges for the conversion of solar energy into hydrogen for sustainable energy production. ZnO... Read More about Cobalt-Doped ZnO Nanorods Coated with Nanoscale Metal-Organic Framework Shells for Water-Splitting Photoanodes.

The role of low Gd concentrations on magnetisation behaviour in rare earth:transition metal alloy films (2020)
Journal Article
Inyang, O., Rafiq, A., Swindells, C., Ali, S., & Atkinson, D. (2020). The role of low Gd concentrations on magnetisation behaviour in rare earth:transition metal alloy films. Scientific Reports, 10(1), Article 9767. https://doi.org/10.1038/s41598-020-66595-5

The magnetisation reversal behaviour as a function of composition was studied in low rare earth concentration alloys. 30 nm thick rare earth:transition-metal films of composition GdxCo100−x, GdxFe100−x and Gdx(Co50Fe50)100−x were prepared by magnetro... Read More about The role of low Gd concentrations on magnetisation behaviour in rare earth:transition metal alloy films.

Ferromagnetic Resonance of FeNi/Cu/FeNi Thin Film on Coplanar Waveguide with Operating Frequency of 1 to 20 GHz (2020)
Journal Article
Shcherbinin, S., Volchkov, S., Swindells, C., Nicholson, B., Atkinson, D., & Kurlyandskaya, G. (2020). Ferromagnetic Resonance of FeNi/Cu/FeNi Thin Film on Coplanar Waveguide with Operating Frequency of 1 to 20 GHz. Russian Physics Journal, 63(1), 1-8. https://doi.org/10.1007/s11182-020-01995-8

The paper presents the calculation results of the coplanar waveguide geometry using the method of conformal mapping and computerized simulation with COMSOL Multiphysics software. Ferromagnetic FeNi/Cu/FeNi magneto-sensitive elements are fabricated in... Read More about Ferromagnetic Resonance of FeNi/Cu/FeNi Thin Film on Coplanar Waveguide with Operating Frequency of 1 to 20 GHz.

Spin current propagation through ultra-thin insulating layers in multilayered ferromagnetic systems (2020)
Journal Article
Swindells, C., Hindmarch, A., Gallant, A., & Atkinson, D. (2020). Spin current propagation through ultra-thin insulating layers in multilayered ferromagnetic systems. Applied Physics Letters, 116(4), Article 042403. https://doi.org/10.1063/1.5119787

Spin current pumping from a ferromagnet through an insulating layer into a heavy metal was studied in a CoFeB/SiO2/Pt system in relation to the thickness and interfacial structure of the insulating layer. The propagation of spin current from the ferr... Read More about Spin current propagation through ultra-thin insulating layers in multilayered ferromagnetic systems.

Amorphous InGaZnO and metal oxide semiconductor devices: an overview and current status (2019)
Journal Article
Troughton, J., & Atkinson, D. (2019). Amorphous InGaZnO and metal oxide semiconductor devices: an overview and current status. Journal of Materials Chemistry C Materials for optical and electronic devices, 7(40), 12388-12414. https://doi.org/10.1039/c9tc03933c

The past 20 years has witnessed a rapid expansion of applications using metal oxide semiconductor devices that ranges from displays technology, to clothing and packaging. Details of these technological applications have been the subject of technical... Read More about Amorphous InGaZnO and metal oxide semiconductor devices: an overview and current status.

Controlling the growth of single crystal ZnO nanowires by tuning the atomic layer deposition parameters of the ZnO seed layer (2019)
Journal Article
Galan-Gonzalez, A., Gallant, A., Zeze, D. A., & Atkinson, D. (2019). Controlling the growth of single crystal ZnO nanowires by tuning the atomic layer deposition parameters of the ZnO seed layer. Nanotechnology, 30(30), Article 305602. https://doi.org/10.1088/1361-6528/ab186a

Semiconducting nanowires (NWs) offer exciting prospects for a wide range of technological applications. The translation of NW science into technology requires reliable high quality large volume production. This study provides an in-depth investigatio... Read More about Controlling the growth of single crystal ZnO nanowires by tuning the atomic layer deposition parameters of the ZnO seed layer.

Spin transport across the interface in ferromagnetic/nonmagnetic systems (2019)
Journal Article
Swindells, C., Hindmarch, A., Gallant, A., & Atkinson, D. (2019). Spin transport across the interface in ferromagnetic/nonmagnetic systems. Physical Review B, 99(6), Article 064406. https://doi.org/10.1103/physrevb.99.064406

Understanding interfacial spin transport is key to developing magnetoelectonic devices, however, the exact nature of the parameters involved is unclear. Here, we report a detailed ferromagnetic resonance-based spintransport analysis on a variety of s... Read More about Spin transport across the interface in ferromagnetic/nonmagnetic systems.

Efficient current-induced magnetization reversal by spin-orbit torque in Pt/Co/Pt (2018)
Journal Article
Rowan-Robinson, R., Hindmarch, A., & Atkinson, D. (2018). Efficient current-induced magnetization reversal by spin-orbit torque in Pt/Co/Pt. Journal of Applied Physics, 124(18), Article 183901. https://doi.org/10.1063/1.5046503

Current-induced magnetization reversal due to spin-orbit torque is demonstrated in an anisotropy controlled Pt/Co/Pt trilayer. The samples were designed to have weak perpendicular magnetic anisotropy, with a measured anisotropy field of (1340±20) Oe.... Read More about Efficient current-induced magnetization reversal by spin-orbit torque in Pt/Co/Pt.

The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface (2017)
Journal Article
Rowan-Robinson, R., Stashkevich, A., Roussigne, Y., Belmeguenai, M., Cherif, S., Thiaville, A., …Atkinson, D. (2017). The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface. Scientific Reports, 7(1), Article 16835. https://doi.org/10.1038/s41598-017-17137-z

The Dzyaloshinskii-Moriya interaction has been shown to stabilise Nèel domain walls in magnetic thin films, allowing high domain wall velocities driven by spin current effects. The interfacial Dzyaloshinskii-Moriya interaction (IDMI) occurs at the in... Read More about The interfacial nature of proximity-induced magnetism and the Dzyaloshinskii-Moriya interaction at the Pt/Co interface.

Temperature Dependence of Magnetically Dead Layers in Ferromagnetic Thin-Films (2017)
Journal Article
Tokac, M., Kinane, C., Atkinson, D., & Hindmarch, A. (2017). Temperature Dependence of Magnetically Dead Layers in Ferromagnetic Thin-Films. AIP Advances, 7(11), Article 115022. https://doi.org/10.1063/1.4997366

Polarized neutron reflectometry has been used to study interface magnetism and magnetic dead layers in model amorphous CoFeB:Ta alloy thin-film multilayers with Curie temperatures tuned to be below room-temperature. This allows temperature dependent... Read More about Temperature Dependence of Magnetically Dead Layers in Ferromagnetic Thin-Films.

Magnetic damping phenomena in ferromagnetic thin-films and multilayers (2017)
Journal Article
Azzawi, S., Hindmarch, A., & Atkinson, D. (2017). Magnetic damping phenomena in ferromagnetic thin-films and multilayers. Journal of Physics D: Applied Physics, 50(47), Article 473001. https://doi.org/10.1088/1361-6463/aa8dad

Damped ferromagnetic precession is an important mechanism underpinning the magnetisation processes in ferromagnetic materials. In thin-film ferromagnets and ferromagnetic/non-magnetic multilayers, the role of precession and damping can be critical fo... Read More about Magnetic damping phenomena in ferromagnetic thin-films and multilayers.

The role of mesoscopic structuring on the intermixing of spin-polarised conduction channels in thin-film ferromagnets for spintronics (2017)
Journal Article
Alcer, D., & Atkinson, D. (2017). The role of mesoscopic structuring on the intermixing of spin-polarised conduction channels in thin-film ferromagnets for spintronics. Nanotechnology, 28(37), Article 375703. https://doi.org/10.1088/1361-6528/aa7dcb

The separation of spin-up and spin-down conduction channels is fundamental to electronic transport in ferromagnets and essential for spintronic functionality. The spin states available for conduction are defined by the ferromagnetic material, but add... Read More about The role of mesoscopic structuring on the intermixing of spin-polarised conduction channels in thin-film ferromagnets for spintronics.

Understanding the role of damping and Dzyaloshinskii-Moriya interaction on dynamic domain wall behaviour in platinum-ferromagnet nanowires (2017)
Journal Article
Brandão, J., Azzawi, S., Hindmarch, A., & Atkinson, D. (2017). Understanding the role of damping and Dzyaloshinskii-Moriya interaction on dynamic domain wall behaviour in platinum-ferromagnet nanowires. Scientific Reports, 7(1), Article 4569. https://doi.org/10.1038/s41598-017-04088-8

Heavy metal layers, exemplified by Pt, are known to play a significant role in the magnetization behaviour of thin-film ferromagnets by three distinct mechanisms that can each contribute to the reversal process. These include modifying the local magn... Read More about Understanding the role of damping and Dzyaloshinskii-Moriya interaction on dynamic domain wall behaviour in platinum-ferromagnet nanowires.

Densification of a-IGZO with low-temperature annealing for flexible electronics applications (2017)
Journal Article
Troughton, J., Downs, P., Price, R., & Atkinson, D. (2017). Densification of a-IGZO with low-temperature annealing for flexible electronics applications. Applied Physics Letters, 110(1), Article 011903. https://doi.org/10.1063/1.4973629

Amorphous InGaZnO (a-IGZO) thin-film transistors are a leading contender for active channel materials in next generation flat panel displays and flexible electronics. Improved electronic functionality has been linked to the increased density of a-IGZ... Read More about Densification of a-IGZO with low-temperature annealing for flexible electronics applications.

Effective pinning energy landscape perturbations for propagating magnetic domain walls (2016)
Journal Article
Burn, D., & Atkinson, D. (2016). Effective pinning energy landscape perturbations for propagating magnetic domain walls. Scientific Reports, 6, Article 34517. https://doi.org/10.1038/srep34517

The interaction between a magnetic domain wall and a pinning site is explored in a planar nanowire using micromagnetics to reveal perturbations of the pinning energetics for propagating domain walls. Numerical simulations in the high damping ’quasi-s... Read More about Effective pinning energy landscape perturbations for propagating magnetic domain walls.