TY - JOUR
T1 - Hidden order in URu 2Si 2 unveiled
AU - Ressouche, E.
AU - Ballou, R.
AU - Bourdarot, F.
AU - Aoki, D.
AU - Simonet, V.
AU - Fernandez-Diaz, M. T.
AU - Stunault, A.
AU - Flouquet, J.
PY - 2012/8/7
Y1 - 2012/8/7
N2 - We report on measurements, by polarized neutron elastic scattering, of the magnetization distribution induced in a single crystal of URu 2Si 2 under a magnetic field applied along the tetragonal c axis. A subtle change in this distribution, revealed by maximum entropy analysis of the data, is found when the temperature is decreased to the range of the hidden order. An analysis in terms of U4 + ionic states reveals that this change is a fingerprint of a freezing of rank 5 multipoles, i.e., dotriacontapoles.
AB - We report on measurements, by polarized neutron elastic scattering, of the magnetization distribution induced in a single crystal of URu 2Si 2 under a magnetic field applied along the tetragonal c axis. A subtle change in this distribution, revealed by maximum entropy analysis of the data, is found when the temperature is decreased to the range of the hidden order. An analysis in terms of U4 + ionic states reveals that this change is a fingerprint of a freezing of rank 5 multipoles, i.e., dotriacontapoles.
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U2 - 10.1103/PhysRevLett.109.067202
DO - 10.1103/PhysRevLett.109.067202
M3 - Article
AN - SCOPUS:84864661644
SN - 0031-9007
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
IS - 6
M1 - 067202
ER -