Magnetostriction and Magnetic Heterogeneities in Iron-Gallium

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Iron-gallium alloys Fe1-xGax exhibit an exceptional increase in magnetostriction with gallium content. We present small-angle neutron scattering investigations on a Fe0.81Ga0.19 single crystal. We uncover heterogeneities with an average spacing of 15 nm and with magnetizations distinct from the matrix. The moments in and around the heterogeneities are observed to reorient with an applied magnetic field or mechanical strain. We discuss the possible roles played by nanoscale magnetic heterogeneities in the mechanism for magnetostriction in this material. © 2010 The American Physical Society
Original languageEnglish
JournalPhysical Review Letters
Publication date2010
Volume105
Issue2
Pages027202
ISSN0031-9007
DOIs
StatePublished

Bibliographical note

Copyright 2010 by the American Physical Society

CitationsWeb of Science® Times Cited: 18

Keywords

  • Materials and energy storage, Superconducting materials
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