Probing 5f -state configurations in URu2Si2 with U LIII -edge resonant x-ray emission spectroscopy

C. H. Booth; S. A. Medling; J. G. Tobin; R. E. Baumbach; E. D. Bauer; D. Sokaras; D. Nordlund; T. C. Weng

doi:10.1103/PhysRevB.94.045121

Probing 5f -state configurations in URu2Si2 with U LIII -edge resonant x-ray emission spectroscopy

C. H. Booth, S. A. Medling, J. G. Tobin, R. E. Baumbach, E. D. Bauer, D. Sokaras, D. Nordlund, T. C. Weng

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Abstract

Resonant x-ray emission spectroscopy (RXES) was employed at the U LIII absorption edge and the Lα1 emission line to explore the 5f occupancy, nf, and the degree of 5f-orbital delocalization in the hidden-order compound URu2Si2. By comparing to suitable reference materials such as UF4, UCd11, and α-U, we conclude that the 5f orbital in URu2Si2 is at least partially delocalized with nf=2.87±0.08, and does not change with temperature down to 10 K within the estimated error. These results place further constraints on theoretical explanations of the hidden order, especially those requiring a localized f2 ground state.

Original language	English
Article number	045121
Journal	Physical Review B
Volume	94
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.94.045121
Publication status	Published - 15 Jul 2016

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title = "Probing 5f -state configurations in URu2Si2 with U LIII -edge resonant x-ray emission spectroscopy",

abstract = "Resonant x-ray emission spectroscopy (RXES) was employed at the U LIII absorption edge and the Lα1 emission line to explore the 5f occupancy, nf, and the degree of 5f-orbital delocalization in the hidden-order compound URu2Si2. By comparing to suitable reference materials such as UF4, UCd11, and α-U, we conclude that the 5f orbital in URu2Si2 is at least partially delocalized with nf=2.87±0.08, and does not change with temperature down to 10 K within the estimated error. These results place further constraints on theoretical explanations of the hidden order, especially those requiring a localized f2 ground state.",

author = "Booth, {C. H.} and Medling, {S. A.} and Tobin, {J. G.} and Baumbach, {R. E.} and Bauer, {E. D.} and D. Sokaras and D. Nordlund and Weng, {T. C.}",

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doi = "10.1103/PhysRevB.94.045121",

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T1 - Probing 5f -state configurations in URu2Si2 with U LIII -edge resonant x-ray emission spectroscopy

AU - Booth, C. H.

AU - Medling, S. A.

AU - Tobin, J. G.

AU - Baumbach, R. E.

AU - Bauer, E. D.

AU - Sokaras, D.

AU - Nordlund, D.

AU - Weng, T. C.

PY - 2016/7/15

Y1 - 2016/7/15

N2 - Resonant x-ray emission spectroscopy (RXES) was employed at the U LIII absorption edge and the Lα1 emission line to explore the 5f occupancy, nf, and the degree of 5f-orbital delocalization in the hidden-order compound URu2Si2. By comparing to suitable reference materials such as UF4, UCd11, and α-U, we conclude that the 5f orbital in URu2Si2 is at least partially delocalized with nf=2.87±0.08, and does not change with temperature down to 10 K within the estimated error. These results place further constraints on theoretical explanations of the hidden order, especially those requiring a localized f2 ground state.

AB - Resonant x-ray emission spectroscopy (RXES) was employed at the U LIII absorption edge and the Lα1 emission line to explore the 5f occupancy, nf, and the degree of 5f-orbital delocalization in the hidden-order compound URu2Si2. By comparing to suitable reference materials such as UF4, UCd11, and α-U, we conclude that the 5f orbital in URu2Si2 is at least partially delocalized with nf=2.87±0.08, and does not change with temperature down to 10 K within the estimated error. These results place further constraints on theoretical explanations of the hidden order, especially those requiring a localized f2 ground state.

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DO - 10.1103/PhysRevB.94.045121

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JO - Physical Review B

JF - Physical Review B

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ER -

Probing 5f -state configurations in URu2Si2 with U LIII -edge resonant x-ray emission spectroscopy

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