From antiferromagnetic and hidden order to Pauli paramagnetism in UM2Si2 compounds with 5f electron duality
Amorese A, Sundermann M, Leedahl B, Marino A, Takegami D, Gretarsson H, Gloskovskii A, Schlueter C, Haverkort MW, Huang Y, Szlawska M, Kaczorowski D, Ran S, Maple MB, Bauer ED, Leithe-Jasper A, Hansmann P, Thalmeier P, Tjeng LH, Severing A (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 117
Pages Range: 30220-30227
Journal Issue: 48
Abstract
Using inelastic X-ray scattering beyond the dipole limit and hard X-ray photoelectron spectroscopy we establish the dual nature of the U [Formula: see text] electrons in U[Formula: see text] (M = Pd, Ni, Ru, Fe), regardless of their degree of delocalization. We have observed that the compounds have in common a local atomic-like state that is well described by the U [Formula: see text] configuration with the [Formula: see text] and [Formula: see text] quasi-doublet symmetry. The amount of the U 5[Formula: see text] configuration, however, varies considerably across the U[Formula: see text] series, indicating an increase of U 5f itineracy in going from M = Pd to Ni to Ru and to the Fe compound. The identified electronic states explain the formation of the very large ordered magnetic moments in [Formula: see text] and [Formula: see text], the availability of orbital degrees of freedom needed for the hidden order in [Formula: see text] to occur, as well as the appearance of Pauli paramagnetism in [Formula: see text] A unified and systematic picture of the U[Formula: see text] compounds may now be drawn, thereby providing suggestions for additional experiments to induce hidden order and/or superconductivity in U compounds with the tetragonal body-centered [Formula: see text] structure.
Authors with CRIS profile
Involved external institutions
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
University of California, San Diego
United States (USA) (US)
Institute of Low Temperature and Structural Research (INTiBS)
Poland (PL)
Ruprecht-Karls-Universität Heidelberg
Germany (DE)
Universität zu Köln
Germany (DE)
Los Alamos National Laboratory
United States (USA) (US)
University of Amsterdam
Netherlands (NL)
Germany (DE)
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
University of California, San Diego
United States (USA) (US)
Institute of Low Temperature and Structural Research (INTiBS)
Poland (PL)
Ruprecht-Karls-Universität Heidelberg
Germany (DE)
Universität zu Köln
Germany (DE)
Los Alamos National Laboratory
United States (USA) (US)
University of Amsterdam
Netherlands (NL)
How to cite
APA:
Amorese, A., Sundermann, M., Leedahl, B., Marino, A., Takegami, D., Gretarsson, H.,... Severing, A. (2020). From antiferromagnetic and hidden order to Pauli paramagnetism in UM2Si2 compounds with 5f electron duality. Proceedings of the National Academy of Sciences of the United States of America, 117(48), 30220-30227. https://dx.doi.org/10.1073/pnas.2005701117
MLA:
Amorese, Andrea, et al. "From antiferromagnetic and hidden order to Pauli paramagnetism in UM2Si2 compounds with 5f electron duality." Proceedings of the National Academy of Sciences of the United States of America 117.48 (2020): 30220-30227.
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