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Tilted X-Ray Holography of Magnetic Bubbles in MnNiGa Lamellae

Turnbull, Luke A.; Birch, Max T.; Laurenson, Angus; Bukin, Nick; Burgos-Parra, Erick O.; Popescu, Horia; Wilson, Murray N.; Stefančič, Aleš; Balakrishnan, Geetha; Ogrin, Feodor Y.; Hatton, Peter D.

Tilted X-Ray Holography of Magnetic Bubbles in MnNiGa Lamellae Thumbnail


Max T. Birch

Angus Laurenson

Nick Bukin

Erick O. Burgos-Parra

Horia Popescu

Murray N. Wilson

Aleš Stefančič

Geetha Balakrishnan

Feodor Y. Ogrin


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 resonant soft X-ray holographic imaging of topological magnetic states in lamellae of the centrosymmetric alloy (Mn1–xNix)0.65Ga0.35 (x = 0.5), showing the presence of magnetic stripes evolving into single core magnetic bubbles. We observe rotation of the stripe phase via the nucleation and destruction of disclination defects. This indicates the system behaves as a conventional uniaxial ferromagnet. By utilizing the holography with extended reference by autocorrelation linear dierential operator (HERALDO) method, we show tilted holographic images at 30° incidence confirming the presence of type-II magnetic bubbles in this system. This study demonstrates the utility of X-ray imaging techniques in identifying the topology of localized structures in nanoscale magnetism.


Turnbull, L. A., Birch, M. T., Laurenson, A., Bukin, N., Burgos-Parra, E. O., Popescu, H., …Hatton, P. D. (2021). Tilted X-Ray Holography of Magnetic Bubbles in MnNiGa Lamellae. ACS Nano, 15(1), 387-395.

Journal Article Type Article
Acceptance Date Oct 23, 2020
Online Publication Date Oct 29, 2020
Publication Date 2021
Deposit Date Nov 2, 2020
Publicly Available Date Nov 3, 2020
Journal ACS Nano
Print ISSN 1936-0851
Electronic ISSN 1936-086X
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 15
Issue 1
Pages 387-395


Published Journal Article (Advance online version) (10.2 Mb)

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Copyright Statement
Advance online version This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.

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