Hidden order and beyond: an experimental—theoretical overview of the multifaceted behavior of URu2Si2

Mydosh, J. A.; Oppeneer, P. M.; Riseborough, P. S.

doi:10.1088/1361-648X/ab5eba

Title: Hidden order and beyond: an experimental—theoretical overview of the multifaceted behavior of URu₂Si₂

Journal Article · 09 January 2020 · Journal of Physics. Condensed Matter

DOI: https://doi.org/10.1088/1361-648X/ab5eba · OSTI ID:1617899

^[1];

^[2]; Riseborough, P. S. ^[3]

Leiden Univ. (Netherlands)
Uppsala Univ. (Sweden)
Temple Univ., Philadelphia, PA (United States)

This topical review describes the multitude of unconventional behaviors in the hidden order, heavy fermion, antiferromagnetic and superconducting phases of the intermetallic compound URu₂Si₂ when tuned with pressure, magnetic field, and substitutions for all three elements. Such 'perturbations' result in a variety of new phases beyond the mysterious hidden order that are only now being slowly understood through a series of state-of-the-science experimentation, along with an array of novel theoretical approaches. Despite all these efforts spanning more than 30 years, hidden order (HO) remains puzzling and non-clarified, and the search continues in 2019 into a fourth decade for its final resolution. We attempt herein to update the present situation of URu₂Si₂ importing the latest experimental results and theoretical proposals. First, let us consider the pristine compound as a function of temperature and report the recent measurements and models relating to its heavy Fermi liquid crossover, its HO and superconductivity (SC). Recent experiments and theories are surmized that address four-fold symmetry breaking (or nematicity), Isingness and unconventional excitation modes. Second, we discuss the pressure dependence of URu₂Si₂ and its transformation to antiferromagnetic long-range order. Next we confront the dramatic high magnetic-field phases requiring fields above 40 T. And finally, we attempt to answer how does random substitutions of other 5f elements for U, and 3d, 4d, and 5d elements for Ru, and even P for Si affect and transform the HO. Commensurately, recent theoretical models are summarized and then related to the intriguing experimental behavior.

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Research Organization:: Temple Univ., Philadelphia, PA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Swedish Research Council (SRC); K. and A. Wallenberg Foundation; Swedish National Infrastructure for Computing (SNIC)

Grant/Contract Number:: FG02-01ER45872

OSTI ID:: 1617899

Journal Information:: Journal of Physics. Condensed Matter, Vol. 32, Issue 14; ISSN 0953-8984

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 41 works

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Details of Sample Dependence and Transport Properties of URu2Si2 Matsuda, Tatsuma D.; Hassinger, Elena; Aoki, Dai arXiv https://doi.org/10.48550/arxiv.1109.1953	text	January 2011
Role of commensurate and incommensurate low-energy excitations in the paramagnetic to hidden-order transition of URu$_2$Si$_2$ Niklowitz, P. G.; Dunsiger, S. R.; Pfleiderer, C. arXiv https://doi.org/10.48550/arxiv.1110.5599	text	January 2011
Magnetically driven superconductivity in CeCu2Si2 Stockert, O.; Arndt, J.; Faulhaber, E. arXiv https://doi.org/10.48550/arxiv.1202.4112	text	January 2012
Optical study of hybridization and hidden order in URu$_2$Si$_2$ Hall, J. S.; Timusk, T. arXiv https://doi.org/10.48550/arxiv.1404.7093	text	January 2014
Exceptional Ising Magnetic Behavior of Itinerant Spin-polarized Carriers in URu2Si2 Werwinski, Miroslaw; Rusz, Jan; Mydosh, John A. arXiv https://doi.org/10.48550/arxiv.1405.1631	text	January 2014
A Model for Metastable Magnetism in the Hidden-Order Phase of URu2Si2 Boyer, Lance; Yakovenko, Victor M. arXiv https://doi.org/10.48550/arxiv.1704.06231	text	January 2017
On the possibility to detect multipolar order in URu$_2$Si$_2$ by the electric quadrupolar transition of resonant elastic X-ray scattering Wang, Y. L.; Fabbris, G.; Meyers, D. arXiv https://doi.org/10.48550/arxiv.1708.05307	text	January 2017

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36 MATERIALS SCIENCE
hidden order
unconventional superconductivity
correlated electron system
Isingness
multifaceted phases

Title: Hidden order and beyond: an experimental—theoretical overview of the multifaceted behavior of URu2Si2

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Title: Hidden order and beyond: an experimental—theoretical overview of the multifaceted behavior of URu₂Si₂