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Analysis of Magnetization Dynamics in NiFe Thin Films with Growth-Induced Magnetic Anisotropies (2024)
Journal Article
Merryweather, L., & Hindmarch, A. T. (2024). Analysis of Magnetization Dynamics in NiFe Thin Films with Growth-Induced Magnetic Anisotropies. Magnetochemistry, 10(10), Article 80. https://doi.org/10.3390/magnetochemistry10100080

We have used angled magnetron sputter deposition with and without sample rotation to control the magnetic anisotropy in 20 nm NiFe films. Ferromagnetic resonance spectroscopy, with data analysis using a Bayesian approach, is used to extract material... Read More about Analysis of Magnetization Dynamics in NiFe Thin Films with Growth-Induced Magnetic Anisotropies.

Two Magnon Scattering Contribution to the Ferromagnetic Resonance Linewidth of Pt(Ir)/CoFeTaB/Ir(Pt) Thin Films (2023)
Journal Article
Tokaç, M., Kazan, S., Özkal, B., Al-jawfi, N., Rameev, B., Nicholson, B., & Hindmarch, A. T. (2023). Two Magnon Scattering Contribution to the Ferromagnetic Resonance Linewidth of Pt(Ir)/CoFeTaB/Ir(Pt) Thin Films. Applied Magnetic Resonance, 54(10), 1053-1064. https://doi.org/10.1007/s00723-023-01601-3

The magnetic properties of Pt/CoFeTaB/Ir and Ir/CoFeTaB/Pt trilayer thin films have been studied using angular- and temperature-dependent ferromagnetic resonance. This enables quantitative determination of the various contributions to the magnetic be... Read More about Two Magnon Scattering Contribution to the Ferromagnetic Resonance Linewidth of Pt(Ir)/CoFeTaB/Ir(Pt) Thin Films.

Magnetoelastic resonance as a probe for exchange springs at antiferromagnet-ferromagnet interfaces (2022)
Journal Article
Seemann, K., Gomonay, O., Mokrousov, Y., Hörner, A., Valencia, S., Klamser, P., Kronast, F., Arb, A., Hindmarch, A., Wixforth, A., Marrows, C., & Fischer, P. (2022). Magnetoelastic resonance as a probe for exchange springs at antiferromagnet-ferromagnet interfaces. Physical Review B, 105(14), Article 144432. https://doi.org/10.1103/physrevb.105.144432

In prototype ferromagnet-antiferromagnet interfaces we demonstrate that surface acoustic waves can be used to identify complex magnetic phases arising upon evolution of exchange springs in an applied field. Applying sub-GHz surface acoustic waves to... Read More about Magnetoelastic resonance as a probe for exchange springs at antiferromagnet-ferromagnet interfaces.

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.

Threshold interface magnetization required to induce magnetic proximity effect (2019)
Journal Article
Inyang, O., Bouchenoire, L., Nicholson, B., Tokaç, M., Rowan-Robinson, R., Kinane, C., & Hindmarch, A. (2019). Threshold interface magnetization required to induce magnetic proximity effect. Physical Review B, 100(17), Article 174418. https://doi.org/10.1103/physrevb.100.174418

Proximity-induced magnetization (PIM) has broad implications across interface-driven spintronics applications employing spin currents. We directly determine the scaling between PIM in Pt and the temperaturedependent interface magnetization in an adja... Read More about Threshold interface magnetization required to induce magnetic proximity effect.

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.

Thickness Dependence of the Dzyaloshinskii-Moriya Interaction in Co2FeAl Ultrathin Films: Effects of Annealing Temperature and Heavy-Metal Material (2018)
Journal Article
Belmeguenai, M., Roussigné, Y., Bouloussa, H., Chérif, S., Stashkevich, A., Nasui, M., Gabor, M., Mora-Hernández, A., Nicholson, B., Inyang, O.-O., Hindmarch, A., & Bouchenoire, L. (2018). Thickness Dependence of the Dzyaloshinskii-Moriya Interaction in Co2FeAl Ultrathin Films: Effects of Annealing Temperature and Heavy-Metal Material. Physical Review Applied, 9(4), Article 044044. https://doi.org/10.1103/physrevapplied.9.044044

The interfacial Dzyaloshinskii-Moriya interaction (IDMI) is investigated in Co2FeAl (CFA) ultrathin films of various thicknesses (0.8 nm ≤ tCFA ≤ 2nm) grown by sputtering on Si substrates, using Pt, W, Ir, and MgO buffer or/and capping layers. Vibrat... Read More about Thickness Dependence of the Dzyaloshinskii-Moriya Interaction in Co2FeAl Ultrathin Films: Effects of Annealing Temperature and Heavy-Metal Material.

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.