Abrupt Topological Transitions in the Hysteresis Curves of Ferromagnetic Metalattices

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 languageEnglish (US)
JournalPhysical Review Letters
Volume89
Issue number19
DOIs
StatePublished - Jan 1 2002

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hysteresis
curves
metals
interstices
confining
crystals
coercivity
stiffness
electronics
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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Abrupt Topological Transitions in the Hysteresis Curves of Ferromagnetic Metalattices. / Han, J. E.; Crespi, Vincent Henry.

In: Physical Review Letters, Vol. 89, No. 19, 01.01.2002.

Research output: Contribution to journalArticle

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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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