Kévin J.A. Franke
Magnetic phases of skyrmion-hosting GaV4S8−ySey (y = 0, 2, 4, 8) probed with muon spectroscopy
Franke, Kévin J.A.; Huddart, Benjamin M.; Hicken, Thomas J.; Xiao, Fan; Blundell, Stephen J.; Pratt, Francis L.; Crisanti, Marta; Barker, Joel A.T.; Clark, Stewart J.; Štefančič, Aleš; Hatnean, Monica Ciomaga; Balakrishnan, Geetha; Lancaster, Tom
Authors
Benjamin Huddart benjamin.m.huddart@durham.ac.uk
PGR Student Doctor of Philosophy
Thomas James Hicken thomas.j.hicken@durham.ac.uk
PGR Student Doctor of Philosophy
Fan Xiao
Stephen J. Blundell
Francis L. Pratt
Marta Crisanti
Joel A.T. Barker
Professor Stewart Clark s.j.clark@durham.ac.uk
Professor
Aleš Štefančič
Monica Ciomaga Hatnean
Geetha Balakrishnan
Professor Tom Lancaster tom.lancaster@durham.ac.uk
Professor
Abstract
We present the results of a muon-spin spectroscopy investigation of GaV4S8−ySey with y = 0, 2, 4, and 8. Zero-field measurements suggest that GaV4Se8 and GaV4S8 have distinct magnetic ground states, with the latter material showing an anomalous temperature dependence of the local magnetic field. It is not possible to evolve the magnetic state continuously between these two systems, with the intermediate y = 2 and 4 materials showing glassy magnetic behavior at low temperature. The skyrmion lattice (SkL) phase is evident in the y = 0 and 8 materials through an enhanced response of the muon-spin relaxation to the emergent dynamics that accompany the SkL. For our polycrystalline samples of GaV4Se8, this enhanced dynamic response is confined to a smaller region of the magnetic field-temperature phase diagram than the previous reports of the SkL in single crystals.
Citation
Franke, K. J., Huddart, B. M., Hicken, T. J., Xiao, F., Blundell, S. J., Pratt, F. L., …Lancaster, T. (2018). Magnetic phases of skyrmion-hosting GaV4S8−ySey (y = 0, 2, 4, 8) probed with muon spectroscopy. Physical Review B, 98(5), Article 054428. https://doi.org/10.1103/physrevb.98.054428
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 2, 2018 |
Online Publication Date | Aug 27, 2018 |
Publication Date | Aug 27, 2018 |
Deposit Date | Sep 7, 2018 |
Publicly Available Date | Sep 13, 2018 |
Journal | Physical Review B |
Print ISSN | 2469-9950 |
Electronic ISSN | 2469-9969 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 98 |
Issue | 5 |
Article Number | 054428 |
DOI | https://doi.org/10.1103/physrevb.98.054428 |
Public URL | https://durham-repository.worktribe.com/output/1320348 |
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Copyright Statement
Reprinted with permission from the American Physical Society: Franke, Kévin J. A., Huddart, Benjamin M., Hicken, Thomas J., Xiao, Fan, Blundell, Stephen J., Pratt, Francis L., Crisanti, Marta, Barker, Joel A. T., Clark, Stewart J., Štefančič, Aleš, Hatnean, Monica Ciomaga, Balakrishnan, Geetha & Lancaster, Tom (2018). Magnetic phases of skyrmion-hosting GaV4S8−ySey (y = 0, 2, 4, 8) probed with muon spectroscopy. Physical Review B 98(5): 054428. © (2018) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.
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