Atomic origin of magnetocrystalline anisotropy in Nd(2)Fe(14)B.
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.
Haskel
D
D
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Lang
J C
JC
Islam
Z
Z
Cady
A
A
Srajer
G
G
van Veenendaal
M
M
Canfield
P C
PC