Luke Turnbull's Outputs (11)

Demonstration of Controlled Skyrmion Injection Across a Thickness Step (2024)
Journal Article
Littlehales, M. T., Moody, S. H., Turnbull, L. A., Huddart, B. M., Brereton, B. A., Balakrishnan, G., Fan, R., Steadman, P., Hatton, P. D., & Wilson, M. N. (2024). Demonstration of Controlled Skyrmion Injection Across a Thickness Step. Nano Letters, 24(22), 6813-6820. https://doi.org/10.1021/acs.nanolett.4c01605

Spintronic devices incorporating magnetic skyrmions have attracted significant interest recently. Such devices traditionally focus on controlling magnetic textures in 2D thin films. However, enhanced performance of spintronic properties through the e... Read More about Demonstration of Controlled Skyrmion Injection Across a Thickness Step.

Three-dimensional tomographic imaging of the magnetization vector field using Fourier transform holography (2023)
Journal Article
Di Pietro Martínez, M., Wartelle, A., Herrero Martínez, C., Fettar, F., Blondelle, F., Motte, J.-F., Donnelly, C., Turnbull, L., Ogrin, F., van der Laan, G., Popescu, H., Jaouen, N., Yakhou-Harris, F., & Beutier, G. (2023). Three-dimensional tomographic imaging of the magnetization vector field using Fourier transform holography. Physical Review B, 107(9), Article 094425. https://doi.org/10.1103/physrevb.107.094425

In recent years, interest in expanding from 2D to 3D systems has grown in the magnetism community, from exploring new geometries to broadening the knowledge on the magnetic textures present in thick samples, and with this arises the need for new char... Read More about Three-dimensional tomographic imaging of the magnetization vector field using Fourier transform holography.

Seeding and Emergence of Composite Skyrmions in a van der Waals Magnet (2023)
Journal Article
Powalla, L., Birch, M. T., Litzius, K., Wintz, S., Yasin, F. S., Turnbull, L. A., …Burghard, M. (2023). Seeding and Emergence of Composite Skyrmions in a van der Waals Magnet. Advanced Materials, 35(12), Article 2208930. https://doi.org/10.1002/adma.202208930

Topological charge plays a significant role in a range of physical systems. In particular, observations of real-space topological objects in magnetic materials have been largely limited to skyrmions – states with a unitary topological charge. Recentl... Read More about Seeding and Emergence of Composite Skyrmions in a van der Waals Magnet.

Enhanced skyrmion metastability under applied strain in FeGe (2022)
Journal Article
Littlehales, M., Turnbull, L., Wilson, M., Birch, M., Popescu, H., Jaouen, N., Verezhak, J., Balakrishnan, G., & Hatton, P. (2022). Enhanced skyrmion metastability under applied strain in FeGe. Physical Review B, 106(21), Article 214434. https://doi.org/10.1103/physrevb.106.214434

Mechanical straining of skyrmion hosting materials has previously demonstrated increased phase stability through the expansion of the skyrmion equilibrium pocket. Additionally, metastable skyrmions can be generated via rapid field cooling to form sig... Read More about Enhanced skyrmion metastability under applied strain in FeGe.

Simulating anti-skyrmions on a lattice (2022)
Journal Article
Criado, J. C., Schenk, S., Spannowsky, M., Hatton, P. D., & Turnbull, L. (2022). Simulating anti-skyrmions on a lattice. Scientific Reports, 12, Article 19179. https://doi.org/10.1038/s41598-022-22043-0

Magnetic skyrmions are topological spin structures that naturally emerge in magnetic materials. While a vast amount of effort has gone into the study of their properties, their counterpart of opposite topological charge, the anti-skyrmion, has not re... Read More about Simulating anti-skyrmions on a lattice.

X-ray holographic imaging of magnetic surface spirals in FeGe lamellae (2022)
Journal Article
Turnbull, L., Littlehales, M., Wilson, M., Birch, M., Popescu, H., Jaouen, N., Verezhak, J., Balakrishnan, G., & Hatton, P. (2022). X-ray holographic imaging of magnetic surface spirals in FeGe lamellae. Physical Review B, 106(6), Article 064422. https://doi.org/10.1103/physrevb.106.064422

Isotropic helimagnets are known to host a diverse range of chiral magnetic states. In 2016, Rybakov et al., theorized the presence of a surface-pinned stacked spin spiral phase [F. N. Rybakov et al., New J. Phys. 18, 045002 (2016)], which has yet to... Read More about X-ray holographic imaging of magnetic surface spirals in FeGe lamellae.

History-dependent domain and skyrmion formation in 2D van der Waals magnet Fe3GeTe2 (2022)
Journal Article
Birch, M., Powalla, L., Wintz, S., Hovorka, O., Litzius, K., Loudon, J., Turnbull, L., Nehruji, V., Son, K., Bubeck, C., Rauch, T., Weigand, M., Goering, E., Burghard, M., & Schütz, G. (2022). History-dependent domain and skyrmion formation in 2D van der Waals magnet Fe3GeTe2. Nature Communications, 13(1), https://doi.org/10.1038/s41467-022-30740-7

The discovery of two-dimensional magnets has initiated a new field of research, exploring both fundamental low-dimensional magnetism, and prospective spintronic applications. Recently, observations of magnetic skyrmions in the 2D ferromagnet Fe3GeTe2... Read More about History-dependent domain and skyrmion formation in 2D van der Waals magnet Fe3GeTe2.

Deriving the skyrmion Hall angle from skyrmion lattice dynamics (2021)
Journal Article
Brearton, R., Turnbull, L., Verezhak, J., Balakrishnan, G., Hatton, P., van der Laan, G., & Hesjedal, T. (2021). Deriving the skyrmion Hall angle from skyrmion lattice dynamics. Nature Communications, 12(1), Article 2723. https://doi.org/10.1038/s41467-021-22857-y

Magnetic skyrmions are topologically non-trivial, swirling magnetization textures that form lattices in helimagnetic materials. These magnetic nanoparticles show promise as high efficiency next-generation information carriers, with dynamics that are... Read More about Deriving the skyrmion Hall angle from skyrmion lattice dynamics.

Tilted X-Ray Holography of Magnetic Bubbles in MnNiGa Lamellae (2020)
Journal Article
Turnbull, L. A., Birch, M. T., Laurenson, A., Bukin, N., Burgos-Parra, E. O., Popescu, H., Wilson, M. N., Stefančič, A., Balakrishnan, G., Ogrin, F. Y., & Hatton, P. D. (2021). Tilted X-Ray Holography of Magnetic Bubbles in MnNiGa Lamellae. ACS Nano, 15(1), 387-395. https://doi.org/10.1021/acsnano.0c07392

Nanoscopic lamellae of centrosymmetric ferromagnetic alloys have recently been reported to host the biskyrmion spin texture; however, this has been disputed as the misidentication of topologically trivial type-II magnetic bubbles. Here we demonstrate... Read More about Tilted X-Ray Holography of Magnetic Bubbles in MnNiGa Lamellae.

Real-space imaging of confined magnetic skyrmion tubes (2020)
Journal Article
Birch, M., Cortés-Ortuño, D., Turnbull, L., Wilson, M., Groß, F., Träger, N., Laurenson, A., Bukin, N., Moody, S., Weigand, M., Schütz, G., Popescu, H., Fan, R., Steadman, P., Verezhak, J., Balakrishnan, G., Loudon, J., Twitchett-Harrison, A., Hovorka, O., Fangohr, H., …Hatton, P. (2020). Real-space imaging of confined magnetic skyrmion tubes. Nature Communications, 11, Article 1726. https://doi.org/10.1038/s41467-020-15474-8

Magnetic skyrmions are topologically nontrivial particles with a potential application as information elements in future spintronic device architectures. While they are commonly portrayed as two dimensional objects, in reality magnetic skyrmions are... Read More about Real-space imaging of confined magnetic skyrmion tubes.

Do Images of Biskyrmions Show Type-II Bubbles? (2019)
Journal Article
Loudon, J. C., Twitchett-Harrison, A. C., Cortés-Ortuño, D., Birch, M. T., Turnbull, L. A., Štefančič, A., Ogrin, F. Y., Burgos-Parra, E. O., Bukin, N., Laurenson, A., Popescu, H., Beg, M., Hovorka, O., Fangohr, H., Midgley, P. A., Balakrishnan, G., & Hatton, P. D. (2019). Do Images of Biskyrmions Show Type-II Bubbles?. Advanced Materials, 31(16), Article 1806598. https://doi.org/10.1002/adma.201806598

The intense research effort investigating magnetic skyrmions and their applications for spintronics has yielded reports of more exotic objects including the biskyrmion, which consists of a bound pair of counter‐rotating vortices of magnetization. Bis... Read More about Do Images of Biskyrmions Show Type-II Bubbles?.