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Hidden spin-order-induced room-temperature ferroelectricity in a peculiar conical magnetic structure

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dc.contributor.authorShen, SPen_AU
dc.contributor.authorLiu, XZen_AU
dc.contributor.authorChai, YSen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorZhai, Ken_AU
dc.contributor.authorYan, LQen_AU
dc.contributor.authorShang, DSen_AU
dc.contributor.authorKlose, Fen_AU
dc.contributor.authorLiu, YTen_AU
dc.contributor.authorChen, DFen_AU
dc.contributor.authorSun, Yen_AU
dc.date.accessioned2026-02-19T21:53:03Zen_AU
dc.date.issued2017-03-07en_AU
dc.date.statistics2025-02-13en_AU
dc.description.abstractA novel mechanism of spin-induced ferroelectricity is unraveled in the alternating longitudinal conical (ALC) magnetic structure. Because the noncollinear ALC structure possesses a c-axis component with collinear ↑-↑-↓-↓ spin order, spin-driven ferroelectricity along the c axis due to the exchange striction mechanism is predicted. Our experiments verify this prediction in the Y-type hexaferrite Ba0.3Sr1.7Co2Fe11AlO22, where ferroelectricity along the c axis is observed up to room temperature. Neutron diffraction data clearly reveal the ALC phase and its evolution with magnetic fields. The c-axis electric polarization can be well modulated by applying either ab-plane or c-axis magnetic fields, even at 305 K. This kind of spin-induced ferroelectricity associated with the ALC magnetic structure provides a new resource of type II multiferroics. ©2025 American Physical Society. All rights reserved.en_AU
dc.identifier.articlenumber094405en_AU
dc.identifier.citationShen, S.-P., Liu, X.-Z., Chai, Y.-S., Studer, A., Rule, K., Zhai, K., Yan, L.-Q., Shang, D.-S., Klose, F., Liu, Y.-T., Chen, D.-F., & Sun, Y. (2017). Hidden spin-order-induced room-temperature ferroelectricity in a peculiar conical magnetic structure. Physical Review B, 95(9), 094405. doi:10.1103/PhysRevB.95.094405en_AU
dc.identifier.issn2469-9950en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue9en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttps://doi.org/10.1103/physrevb.95.094405en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/17087en_AU
dc.identifier.volume95en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectFerroelectric materialsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectConical Configurationen_AU
dc.subjectSpinen_AU
dc.subjectAmbient temperatureen_AU
dc.subjectBariumen_AU
dc.subjectStrontiumen_AU
dc.subjectCarbonen_AU
dc.subjectIronen_AU
dc.subjectAluminiumen_AU
dc.subjectDataen_AU
dc.titleHidden spin-order-induced room-temperature ferroelectricity in a peculiar conical magnetic structureen_AU
dc.typeJournal Articleen_AU

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