Abrupt Topological Transitions in the Hysteresis Curves of Ferromagnetic Metalattices

J. E. Han; Vincent H. Crespi

doi:10.1103/PhysRevLett.89.197203

Abrupt Topological Transitions in the Hysteresis Curves of Ferromagnetic Metalattices

J. E. Han, Vincent H. Crespi

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

When a metal is confined to the interstices of an inert colloidal crystal, the intrinsic order parameter(s) of electronic and magnetic phenomena within the metal interact with the structural order parameter of the surrounding (and confining) colloidal crystal. If the magnetic stiffness length is comparable to the colloidal lattice constant, the interplay of competing interactions stabilizes multiple topologically distinct magnetic phases separated by sharp transitions in the hysteresis curves. The colloidal confinement also induces substantial coercivity in metals that are perfectly soft in the bulk.

Original language	English (US)
Journal	Physical review letters
Volume	89
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.89.197203
State	Published - 2002

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.89.197203

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title = "Abrupt Topological Transitions in the Hysteresis Curves of Ferromagnetic Metalattices",

abstract = "When a metal is confined to the interstices of an inert colloidal crystal, the intrinsic order parameter(s) of electronic and magnetic phenomena within the metal interact with the structural order parameter of the surrounding (and confining) colloidal crystal. If the magnetic stiffness length is comparable to the colloidal lattice constant, the interplay of competing interactions stabilizes multiple topologically distinct magnetic phases separated by sharp transitions in the hysteresis curves. The colloidal confinement also induces substantial coercivity in metals that are perfectly soft in the bulk.",

author = "Han, {J. E.} and Crespi, {Vincent H.}",

note = "Funding Information: We gratefully acknowledge support from the David and Lucile Packard Foundation, the Penn State Materials Research Science and Engineering Center under NSF Grant No. DMR-0080019, and the Penn State Materials Simulation Center. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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AU - Crespi, Vincent H.

N1 - Funding Information: We gratefully acknowledge support from the David and Lucile Packard Foundation, the Penn State Materials Research Science and Engineering Center under NSF Grant No. DMR-0080019, and the Penn State Materials Simulation Center. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

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N2 - When a metal is confined to the interstices of an inert colloidal crystal, the intrinsic order parameter(s) of electronic and magnetic phenomena within the metal interact with the structural order parameter of the surrounding (and confining) colloidal crystal. If the magnetic stiffness length is comparable to the colloidal lattice constant, the interplay of competing interactions stabilizes multiple topologically distinct magnetic phases separated by sharp transitions in the hysteresis curves. The colloidal confinement also induces substantial coercivity in metals that are perfectly soft in the bulk.

AB - When a metal is confined to the interstices of an inert colloidal crystal, the intrinsic order parameter(s) of electronic and magnetic phenomena within the metal interact with the structural order parameter of the surrounding (and confining) colloidal crystal. If the magnetic stiffness length is comparable to the colloidal lattice constant, the interplay of competing interactions stabilizes multiple topologically distinct magnetic phases separated by sharp transitions in the hysteresis curves. The colloidal confinement also induces substantial coercivity in metals that are perfectly soft in the bulk.

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ER -

Abrupt Topological Transitions in the Hysteresis Curves of Ferromagnetic Metalattices

Abstract

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