Increase of the stability range of the skyrmion phase in doped Cu2OSeO3

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dc.contributor.authorSauceda Flores, JAen_AU
dc.contributor.authorRov, Ren_AU
dc.contributor.authorCamacho, Len_AU
dc.contributor.authorSpasovski, Men_AU
dc.contributor.authorVella, Jen_AU
dc.contributor.authorYick, Sen_AU
dc.contributor.authorGilbert, EPen_AU
dc.contributor.authorHan, MGen_AU
dc.contributor.authorZhu, Yen_AU
dc.contributor.authorSeidel, Jen_AU
dc.contributor.authorKharkov, Yen_AU
dc.contributor.authorSushkov, OPen_AU
dc.contributor.authorSöhnel, Ten_AU
dc.contributor.authorUlrich, Cen_AU
dc.date.accessioned2022-08-30T02:30:04Zen_AU
dc.date.available2022-08-30T02:30:04Zen_AU
dc.date.issued2020-02-04en_AU
dc.date.statistics2021-10-13en_AU
dc.description.abstractA skyrmion is a topological stable particle-like object comparable to a spin vortex at the nanometre scale. It consists of an about 50 nm large spin rotation and its spin winding number is quantized. Once formed, the skyrmions order in a two dimensional, typically hexagonal superstructure perpendicular to an applied external magnetic field (see Fig. 1). Its dynamics has links to flux line vortices as in high temperature superconductors. Cu2OSeO3 is a unique case of a multiferroic materials where the skyrmion dynamics could be controlled through the application of an external electric field. The direct control of the skyrmion dynamics through a non-dissipative method would offer technological benefits and unique possibilities for testing fundamental theories also related to the Higgs Boson whose theoretical description has similarities to skyrmions. Important for technological applications is a stability range of the skyrmion phase up to room temperature. While room temperature skyrmion materials exist, Cu2OSeO3 orders magnetically below 58 K. Our combined small angle neutron scattering (see Fig. 2), SQUID magnetization measurements and electron microscopy investigations did provide direct evidence that the stability range of the skyrmion phase can be extended in Te-doped Cu2OSeO3. The understanding of this effect will help to obtain deeper insights in the magnetic correlations in charge of the skyrmion formation and will thus help to systematically search for skyrmion materials with phase transition temperatures towards room temperature.en_AU
dc.identifier.citationSauceda Flores, J., Rov, R., & Camacho, L., Spasovski, M., Vella, J., Yick, S., Gilbert, E., Han, M. G., Zhu, Y., Seidel, J., Kharkov, Y., Sushkov., O., Söhnel, T., & Ulrich, C. (2020). Increase of the stability range of the skyrmion phase in doped Cu2OSeO3. Paper presented to the 44th Condensed Matter and Materials Meeting, Holiday Inn, Rotorua, New Zealand 4-7 February 2020, (pp. 52). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2020/CMM20_ConferenceHandbook(04Feb2020).pdfen_AU
dc.identifier.conferenceenddate7 February 2020en_AU
dc.identifier.conferencename44th Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceRotorua, New Zealanden_AU
dc.identifier.conferencestartdate4 February 2020en_AU
dc.identifier.pagination52en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2020/CMM20_ConferenceHandbook(04Feb2020).pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13673en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectAngular momentumen_AU
dc.subjectChalcogenidesen_AU
dc.subjectCopper compoundsen_AU
dc.subjectCrystal latticesen_AU
dc.subjectCrystal structureen_AU
dc.subjectElectronic equipmenten_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectMicrowave equipmenten_AU
dc.subjectNucleon-nucleon potentialen_AU
dc.subjectOxidesen_AU
dc.subjectOxygen compoundsen_AU
dc.subjectParticle propertiesen_AU
dc.subjectPotentialsen_AU
dc.subjectQuasi particlesen_AU
dc.subjectScatteringen_AU
dc.subjectSuperconducting devicesen_AU
dc.subjectThree-dimensional latticesen_AU
dc.subjectTransition element compoundsen_AU
dc.titleIncrease of the stability range of the skyrmion phase in doped Cu2OSeO3en_AU
dc.typeConference Presentationen_AU
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