Topological barrier for skyrmion lattice formation in MnSi
dc.contributor.author | Leishman, A | en_AU |
dc.contributor.author | Menezes, RM | en_AU |
dc.contributor.author | Longbons, G | en_AU |
dc.contributor.author | Bauer, ED | en_AU |
dc.contributor.author | Janoschek, M | en_AU |
dc.contributor.author | Honecker, D | en_AU |
dc.contributor.author | Debeer-Schmitt, L | en_AU |
dc.contributor.author | White, JS | en_AU |
dc.contributor.author | Sokolova, AV | en_AU |
dc.contributor.author | Milosevic, MV | en_AU |
dc.contributor.author | Eskildsen, MR | en_AU |
dc.date.accessioned | 2023-05-05T01:09:13Z | en_AU |
dc.date.available | 2023-05-05T01:09:13Z | en_AU |
dc.date.issued | 2020-11-11 | en_AU |
dc.date.statistics | 2023-05-01 | en_AU |
dc.description.abstract | We report the observation of a topological skyrmion energy barrier through a hysteresis of the skyrmion lattice in the prototypical helimagnet MnSi. Measurements of the energy barrier were made using smallangle neutron scattering and a bespoke DC field coil to allow for high-precision hysteresis loops. Data has been analyzed using an adapted Preisach model to quantify the energy barrier for skyrmion formation and the magnetic behavior of the sample as a whole. This analysis was then compared with minimum-energy path analysis based on atomistic spin simulations to verify the topological nature of the barrier. This reveals that the skyrmion lattice in MnSi forms with an activation barrier of several eV and in domains that are several hundred skyrmions in size. | en_AU |
dc.identifier.citation | Leishman, A., Menezes, R., Longbons, G., Bauer, E., Janoschek, M., Honecker, D., Debeer-Schmitt, L., White, J., Sokolova, A., Milosevic, M., & Eskildsen, M. (2020). Topological barrier for skyrmion lattice formation in MnSi. Paper presented to the ANBUG-AINSE Neutron Scattering Symposium, AANSS 2020, Virtual Meeting, 11th - 13th November 2020, (pp. 86). Retrieved from: https://events01.synchrotron.org.au/event/125/attachments/725/1149/AANSS_Abstract_Booklet_Complete_-_1_Page_Reduced.pdf | en_AU |
dc.identifier.conferenceenddate | 13 November 2020 | en_AU |
dc.identifier.conferencename | ANBUG-AINSE Neutron Scattering Symposium, AANSS 2020 | en_AU |
dc.identifier.conferenceplace | Virtual Meeting | en_AU |
dc.identifier.conferencestartdate | 11 November 2020 | en_AU |
dc.identifier.pagination | 86 | en_AU |
dc.identifier.uri | https://events01.synchrotron.org.au/event/125/contributions/3778/contribution.pdf | en_AU |
dc.identifier.uri | https://apo.ansto.gov.au/dspace/handle/10238/15004 | en_AU |
dc.language.iso | en | en_AU |
dc.publisher | Australian Institute of Nuclear Science and Engineering (AINSE) | en_AU |
dc.subject | Hysteresis | en_AU |
dc.subject | Skyrme potential | en_AU |
dc.subject | Small angle scattering | en_AU |
dc.subject | Neutrons | en_AU |
dc.subject | Reactor lattices | en_AU |
dc.subject | Data | en_AU |
dc.title | Topological barrier for skyrmion lattice formation in MnSi | en_AU |
dc.type | Conference Abstract | en_AU |