ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The materials crystallize in the NaCl structure. UP undergoes at 122 K a first order transition into a type I single-k antiferromagnetic state, followed by a second first order transition into a type I double-k-structure at 22 K. UTe is a ferromagnet withT c =104 K. The two first order transitions of UP reveal themselves by abrupt changes of the transverse field damping rate. No spin rotation is observed in zero field for both antiferromagnetic spin structures which is in keeping with point dipolar lattice sums. In UTe we observe the characteristic critical behavior: a rapid increase of damping rate and paramagnetic frequency shift when approachingT c from above. In the ferromagnetic regime the spin rotation in zero field damps out too rapidly to be observed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02407805
