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Magnetic field induced chirality in Ho/Y multilayers with gradually decreasing anisotropy
Natl Res Ctr, Kurchatov Inst, Petersburg Nucl Phys Inst, Gatchina 188300, Russia..
Natl Acad Sci Ukraine, Inst Magnetism, UA-03142 Kiev, Ukraine.;Kiev Natl Univ, Inst High Technol, Glushkovaave 4-G, UA-03022 Kiev, Ukraine..
Natl Res Ctr, Kurchatov Inst, Petersburg Nucl Phys Inst, Gatchina 188300, Russia..
Natl Acad Sci Ukraine, Inst Magnetism, UA-03142 Kiev, Ukraine..
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2017 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 96, no 1, article id 014415Article in journal (Refereed) Published
Abstract [en]

Metal rare-earth magnetic/nonmagnetic Ho/Y superlattice structures possess a coherent spin helix propagating through many superlattice layer repetitions. An externalmagnetic field applied in the film plane induces a nonzero average chirality of the helices. It is shown that the direction of the applied in-plane field can modify the value and sign of the chirality parameter.. The dependence of. on the relative angle of applied field during the field`-cooling procedure has an oscillatory character and can be described by simple sinusoidal function with p periodicity. The experimental finding is discussed from the point of view of an interbalance between Zeeman energy, magnetocrystalline anisotropy, and induced uniaxial anisotropy.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 96, no 1, article id 014415
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-329923DOI: 10.1103/PhysRevB.96.014415ISI: 000405363300001OAI: oai:DiVA.org:uu-329923DiVA, id: diva2:1184898
Available from: 2018-02-22 Created: 2018-02-22 Last updated: 2018-02-22Bibliographically approved

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Kapaklis, VassiliosVorobiev, Alexei

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