Polarized-neutron study of the magnetic moment distribution inalloys
- 1 July 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 16 (1) , 297-301
- https://doi.org/10.1103/physrevb.16.297
Abstract
Polarized-neutron diffuse-scattering methods were used to determine the spatial distribution of the magnetic moments in alloys containing 0.23-, 0.46-, 0.99-, and 1.91-at.% Mn. The measurements, made on polycrystalline samples at 4.2 K in an applied field of 45 kOe, show a moment of about localized at the Mn sites. The lower-concentration cross sections tend to increase at small reciprocal-lattice vector , as expected for such "giant-moment" systems, while the two higher-concentration alloys show an anticorrelation corresponding to Mn spin reversal and/or postitional short-range order. The cross sections are analyzed by assuming that the magnetic moment on a Pd atom depends on both its magnetic and chemical environment.
Keywords
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