Unusual magnetic phases in MnCo ultrathin alloy films

    Authors

    S. Banerjee; W. L. O'Brien;B. P. Tonner

    Comments

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    Abbreviated Journal Title

    J. Magn. Magn. Mater.

    Keywords

    thin films; X-ray magnetic circular dichroism; CO(001); Materials Science, Multidisciplinary; Physics, Condensed Matter

    Abstract

    For over a quarter century the Mn:Co magnetic phase diagram has been controversial. We find that for Mn:Co ultrathin alloys with dilute Mn concentration, the Mn and Co moments are coupled parallel for dilute Mn concentrations using X-ray magnetic circular dichroism (XMCD), in contradistinction to the latest accepted bulk results using neutron scattering. To determine if the parallel coupling was the result of epitaxial strain, surface or interface effects, we also performed measurements on very thick films of the same compositions. XMCD shows that thick him Mn : Co alloys have identical magnetic coupling as ultrathin films. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

    Journal Title

    Journal of Magnetism and Magnetic Materials

    Volume

    198-99

    Publication Date

    1-1-1999

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    267

    Last Page

    269

    WOS Identifier

    WOS:000080779600086

    ISSN

    0304-8853

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