Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session P56: Uranium-Based Superconductors, Hidden Order, and Related Phases
2:30 PM–5:30 PM,
Wednesday, March 4, 2020
Room: Mile High Ballroom 2C
Sponsoring
Unit:
DCMP
Chair: Firoza Kabir, Univ of Central Florida
Abstract: P56.00012 : Spectroscopic investigation of UFe2Si2, URu2Si2, UNi2Si2, and UPd2Si2: from Pauli paramagnetism to antiferromagnetism via the hidden order state.*
Presenter:
Andrea Severing
(Institute of Physics II, University of Cologne)
Authors:
Andrea Severing
(Institute of Physics II, University of Cologne)
Andrea Amorese
(Max-Planck Institute for Chemical Physics of Solids Dresden)
Martin Sundermann
(Institute of Physics II, University of Cologne)
Maurits Haverkort
(Institute of Theoretical Physics, University of Heidelberg)
Yingkai Huang
(van der Waals Zeeman Institute, Amsterdam University)
Maria Szlawska
(Polish Acadademy of Science)
Dariusz Kaczorowski
(Polish Acadademy of Science)
Ran Sheng
(Departement of Physics, University fo California, San Diego)
M Brian Maple
(Departement of Physics, University fo California, San Diego)
Eric Bauer
(Los Alamos National Laboratory)
Andreas Leithe-Jasper
(Max-Planck Institute for Chemical Physics of Solids Dresden)
Liu Tjeng
(Max-Planck Institute for Chemical Physics of Solids Dresden)
We have determined the degree of the 5f-electron localization (HAXPES [3]) as well as the symmetry of the 5f ground state wave function (NIXS [4]) across these very different compounds. This enabled us to identify their systematics and to place them in an effective Doniach phase diagram.
[1] see e.g. references in J.A. Mydosh and P.M. Oppeneer in Rev. Mod. Phys. 83, 1301{1322 (2011) and in Phil. Magazine 94, 3642 (2014).
[2] see e.g. references in T. Endstra et al, PRB 48, 9595 (1993)
[3] see M. Sundermann et al, J. Elec. Spec. & Rel. Phen. 209, 1 (2016)
[4] see M. Sundermann et al. PNAS 113, 13989 (2016)
*Financial support of the DFG under grant SE-1441/5-1 is gratefully acknowledged.
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