Direct Observation of Phase Coherence in 3-k Magnetic Configurations
We report the observation by neutron diffraction of phase coherent
Bragg reactions in a multi-k magnetic confguration with a spatial periodicity
outside the conventional scattering cross-section. The peaks,
which exist in the 3-k state of UAs0:8Se0:2, display long-range order with
a wavevector dependence characteristic of a magnetic interaction. The results
confirm the long-range order and temperature dependence reported
in an earlier study of similar peaks in this material using x-ray resonant
scattering by (a) the non-trivial extension to the technique of neutron
diffraction, and (b) the observation of similar 3-k phase-coherent re
ections in other samples by x-ray resonant scattering. The importance of
the neutron diffraction results lies primarily in the fact that magnetic
neutron diffraction is well established as a weak probe operating on thermodynamic
time scales.
BLACKBURN Elizabeth;
BERNHOEFT N.;
MCINTYRE G.;
WILKINS S.B.;
BOULET Pascal;
OLLIVIER J.;
PODLESNYAK A.;
JURANYI F.;
JAVORSKY Pavel;
LANDER Gerard;
MATTENBERGER K.;
VOGT O.;
2006-08-03
TAYLOR & FRANCIS LTD
JRC30264
https://publications.jrc.ec.europa.eu/repository/handle/JRC30264,
10.1080/14786430500337027,
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