2018
DOI: 10.1103/physrevb.97.184414
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Element-specific observation of the ferromagnetic ordering process in UCoAl via soft x-ray magnetic circular dichroism

Abstract: We have performed soft x-ray magnetic circular dichroism (XMCD) experiments on the itinerant-electron metamagnet UCoAl at the U 4d − 5f (N 4,5) and Co 2p − 3d(L 2,3) absorption edges in order to investigate the magnetic properties of the U 5f and Co 3d electrons separately. From the line shape of the XMCD spectrum, it is deduced that the orbital magnetic moment of the Co 3d electrons is unusually large. Through the systematic temperature (T)-and magnetic field (H)-dependent XMCD measurements, we have obtained … Show more

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Cited by 4 publications
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“…This curve is similar to the one recorded at the M 4 edge of Ce, so that one can conclude that the Al 3p states are involved in the FM coupling between Ce2 sites. Such a contribution of Al to the magnetism of a compound was, for instance, previously found in UCoAl [54]. However, it is worth noting that the Al magnetization saturates above 0.2 T, and does not display the paramagnetic (PM) behavior observed at the Ce M 4 edge.…”
Section: A Xanes and Xmcdsupporting
confidence: 63%
“…This curve is similar to the one recorded at the M 4 edge of Ce, so that one can conclude that the Al 3p states are involved in the FM coupling between Ce2 sites. Such a contribution of Al to the magnetism of a compound was, for instance, previously found in UCoAl [54]. However, it is worth noting that the Al magnetization saturates above 0.2 T, and does not display the paramagnetic (PM) behavior observed at the Ce M 4 edge.…”
Section: A Xanes and Xmcdsupporting
confidence: 63%