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Magnetism in Cr Thin Films on Fe(100)



John Unguris, Robert Celotta, Daniel T. Pierce


The spin polarization of secondary electrons from a Cr film on Fe(100), measured with scanning electron microscopy with polarization analysis, oscillates as a function of Cr thickness with a period near two atomic layers, consistent with incommensurate spin-density-wave antiferromagnetism in the Cr. The position of a phase slip due to incommensurability varies reversibly by 14 layers over the temperature range of 310 to 550 K. The Cr surface magnetic moment persists well above the Neel temperature of bulk Cr.
Physical Review Letters


Unguris, J. , Celotta, R. and Pierce, D. (1992), Magnetism in Cr Thin Films on Fe(100), Physical Review Letters (Accessed June 24, 2024)


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Created December 31, 1991, Updated October 12, 2021