Spectroscopic determination of the atomic f -Electron symmetry underlying hidden order in URu2Si2

L. Andrew Wray; Jonathan Denlinger; Shih Wen Huang; Haowei He; Nicholas P. Butch; M. Brian Maple; Zahid Hussain; Yi De Chuang

doi:10.1103/PhysRevLett.114.236401

Spectroscopic determination of the atomic f -Electron symmetry underlying hidden order in URu2Si2

L. Andrew Wray, Jonathan Denlinger, Shih Wen Huang, Haowei He, Nicholas P. Butch, M. Brian Maple, Zahid Hussain, Yi De Chuang

Research output: Contribution to journal › Article › peer-review

Abstract

The low-temperature hidden-order state of URu2Si2 has long been a subject of intense speculation, and is thought to represent an as-yet-undetermined many-body quantum state not realized by other known materials. Here, x-ray absorption spectroscopy and high-resolution resonant inelastic x-ray scattering are used to observe electronic excitation spectra of URu2Si2, as a means to identify the degrees of freedom available to constitute the hidden-order wave function. Excitations are shown to have symmetries that derive from a correlated 5f2 atomic multiplet basis that is modified by itinerancy. The features, amplitude, and temperature dependence of linear dichroism are in agreement with ground states that closely resemble the doublet Γ5 crystal field state of uranium.

Original language	English (US)
Article number	236401
Journal	Physical Review Letters
Volume	114
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.114.236401
State	Published - Jun 9 2015

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.114.236401

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title = "Spectroscopic determination of the atomic f -Electron symmetry underlying hidden order in URu2Si2",

abstract = "The low-temperature hidden-order state of URu2Si2 has long been a subject of intense speculation, and is thought to represent an as-yet-undetermined many-body quantum state not realized by other known materials. Here, x-ray absorption spectroscopy and high-resolution resonant inelastic x-ray scattering are used to observe electronic excitation spectra of URu2Si2, as a means to identify the degrees of freedom available to constitute the hidden-order wave function. Excitations are shown to have symmetries that derive from a correlated 5f2 atomic multiplet basis that is modified by itinerancy. The features, amplitude, and temperature dependence of linear dichroism are in agreement with ground states that closely resemble the doublet Γ5 crystal field state of uranium.",

author = "Wray, {L. Andrew} and Jonathan Denlinger and Huang, {Shih Wen} and Haowei He and Butch, {Nicholas P.} and Maple, {M. Brian} and Zahid Hussain and Chuang, {Yi De}",

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AU - Wray, L. Andrew

AU - Denlinger, Jonathan

AU - Huang, Shih Wen

AU - He, Haowei

AU - Butch, Nicholas P.

AU - Maple, M. Brian

AU - Hussain, Zahid

AU - Chuang, Yi De

PY - 2015/6/9

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AB - The low-temperature hidden-order state of URu2Si2 has long been a subject of intense speculation, and is thought to represent an as-yet-undetermined many-body quantum state not realized by other known materials. Here, x-ray absorption spectroscopy and high-resolution resonant inelastic x-ray scattering are used to observe electronic excitation spectra of URu2Si2, as a means to identify the degrees of freedom available to constitute the hidden-order wave function. Excitations are shown to have symmetries that derive from a correlated 5f2 atomic multiplet basis that is modified by itinerancy. The features, amplitude, and temperature dependence of linear dichroism are in agreement with ground states that closely resemble the doublet Γ5 crystal field state of uranium.

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Spectroscopic determination of the atomic f -Electron symmetry underlying hidden order in URu2Si2

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