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Phys Rev Lett. 2005 Nov 18;95(21):217207. doi: 10.1103/PhysRevLett.95.217207. Epub 2005 Nov 18.

Atomic origin of magnetocrystalline anisotropy in Nd(2)Fe(14)B.

Physical review letters

D Haskel, J C Lang, Z Islam, A Cady, G Srajer, M van Veenendaal, P C Canfield

Affiliations

  1. Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.

PMID: 16384180 DOI: 10.1103/PhysRevLett.95.217207

Abstract

The magnetic moment reversal at each of the two inequivalent Nd sites in a single crystal of ferromagnetic Nd(2)Fe(14)B is probed by dichroic resonant diffraction of circularly polarized x rays. The results, supported by theory, show that the c-axis intrinsic magnetic stability of this superior permanent magnetic material arises predominantly at one of the Nd sites (g). The other site (f) undermines magnetic stability by favoring a magnetic moment orientation in the basal plane.

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