Evolution of Magnetic Order from the Localized to the Itinerant Limit

Quantum materials that feature magnetic long-range order often reveal complex phase diagrams when localized electrons become mobile. In many materials magnetism is rapidly suppressed as electronic charges dissolve into the conduction band. In materials where magnetism persists, it is unclear how the...

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Bibliographic Details
Published in:Physical review letters 2019-08, Vol.123 (9), p.1, Article 097201
Main Authors: Mazzone, D. G., Gauthier, N., Maimone, D. T., Yadav, R., Bartkowiak, M., Gavilano, J. L., Raymond, S., Pomjakushin, V., Casati, N., Revay, Z., Lapertot, G., Sibille, R., Kenzelmann, M.
Format: Article
Language:English
Subjects:
Condensed Matter
Conduction bands
Evolution
Fermions
Long range order
Magnetic properties
Magnetic structure
Magnetism
Materials Science
Phase diagrams
Physics
Strongly Correlated Electrons
Unconventional superconductivity
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Summary:Quantum materials that feature magnetic long-range order often reveal complex phase diagrams when localized electrons become mobile. In many materials magnetism is rapidly suppressed as electronic charges dissolve into the conduction band. In materials where magnetism persists, it is unclear how the magnetic properties are affected. Here we study the evolution of the magnetic structure in Nd1−xCexCoIn5 from the localized to the highly itinerant limit. We observe two magnetic ground states inside a heavy-fermion phase that are detached from unconventional superconductivity. The presence of two different magnetic phases provides evidence that increasing charge delocalization affects the magnetic interactions via anisotropic band hybridization.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.123.097201