Abstract
UPd3 exhibits phase transitions at T-1 approximate to 7 K and T-2 approximate to 5 K. Polarised-neutron diffraction measurements showed that a structural modulation with wavevector (1/2, 0, 0) takes place below T-1. A more detailed neutron-diffraction study of this phase is reported: group-theory analysis of the results indicates that the ordered phase below T-1 is a triple-q antiferroquadrupolar structure involving Q(x2-y2), Q(xz) and Q(zz) quadrupole moments of the uranium ions.
Original language | English |
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Journal | Physica B: Condensed Matter |
Volume | 213/214 |
Pages (from-to) | 128-130 |
ISSN | 0921-4526 |
DOIs | |
Publication status | Published - 1995 |