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|Title:||Multi-k Magnetic Structures in USb0.9Te0.1 and UAs0.8Se0.2 Observed Via Resonant x-Ray Scattering at the U M4 Edge|
|Authors:||DETLEFS B.; WILKINS S.b.; JAVORSKY Pavel; BLACKBURN Elizabeth; LANDER Gerard|
|Citation:||PHYSICAL REVIEW B vol. 75 p. 174403-1 174403-6|
|Publisher:||AMERICAN PHYSICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||Experiments with resonant photons at the U M4 edge have been performed on a sample of USb0.9Te0.1, which has an incommensurate magnetic structure with k=k=0.5962 reciprocal lattice units. The reflections of the form kkk, as observed previously in a commensurate k=1/2 system N. Bernhoeft et al., Phys. Rev. B 69, 174415 2004, are observed, removing any doubt that these occur because of multiple scattering or high-order contamination of the incident photon beam. They are clearly connected with the presence of a 3k configuration. Measurements of the kkk reflections from the sample UAs0.8Se0.2 in a magnetic field show that the transition at T50 K is between a low-temperature 2k and high-temperature 3k state and that this transition is sensitive to an applied magnetic field. These experiments stress the need for quantitative theory to explain the intensities of these kkk reflections.|
|JRC Directorate:||Nuclear Safety and Security|
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