Effect of temperature on hybridization and magnetism in U2Pd2Sn and U2Ni2In

Nakotte, H.; El-Khatib, S.; Christianson, A. D.; Dreele, Robert B. Von; Prokeš, K.; Sechovský, V.; Pereira, L. C. J.; Spirlet, J.C.; Rébizant, J.

doi:10.1016/j.jallcom.2004.01.015

Cited by 1 publication

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“…2 The studies confirmed the dominant effects of 5f-ligand hybridization in magnetic moment stabilization and formation of long-range magnetic order of these two compounds. In particular, for these two U 2 T 2 X compounds, the results seemed to show evidence that 5f-d hybridization promotes magnetic exchange interactions, while 5f-p hybridization merely causes delocalization ͑and thus a reduction in the U mo-ment͒.…”

Section: Introductionmentioning

confidence: 62%

Effect of temperature on hybridization and magnetism in UPdSn and UCuSn

Kothapalli

Nasreen

Peterson

et al. 2009

Journal of Applied Physics

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We measured the temperature dependence of the structural parameters and the occurrence of magnetism in UPdSn and UCuSn using neutron diffraction. The data were taken in an effort to understand the role of hybridization effects for the development of the uranium magnetic moment and the occurrence of long-range magnetic order in these two compounds. The shortest U-U distance provides a measure of delocalization due to direct 5f-5f overlap, while the U-Pd ͑or U-Cu, respectively͒ and U-Sn distances give a measure of the effects of 5f-ligand hybridization. Using Rietveld refinement of our neutron diffraction data, we determined the shortest interatomic distances for temperatures between 15 K and room temperature. The changes in the interatomic distances cause changes in the hybridization effects, which in turn leads to the formation of a magnetic ground state for both compounds.

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Section: Introductionmentioning

confidence: 62%