Magnetic first-order transitions in UNiGe
A Murasik; P Fischer; R Troc; V H Tran; A Murasik; Lab. fur Neutronenstreuung, ETH Zurich, Villigen, Switzerland; P Fischer; Lab. fur Neutronenstreuung, ETH Zurich, Villigen, Switzerland; R Troc; Lab. fur Neutronenstreuung, ETH Zurich, Villigen, Switzerland; V H Tran; Lab. fur Neutronenstreuung, ETH Zurich, Villigen, Switzerland
Журнал:
Journal of Physics: Condensed Matter
Дата:
1991-03-25
Аннотация:
Bulk magnetic and neutron diffraction measurements revealed that UNiGe orders antiferromagnetically at T<sub>N</sub>=(43.3+or-0.1) K. The magnetic unit cell is doubled along the a and c directions corresponding to a propagation vector k=(1/2, 0, 1/2). At 13 K the ordered magnetic moment of uranium amounts to (1.37+or-0.07) mu <sub>B</sub> and is aligned along the b axis. There is strong experimental evidence that the transition to the ordered state is of first order.
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