Journal Article

FZJ-2019-05722

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Incommensurate Magnetism Near Quantum Criticality in CeNiAsO

Wu, S. ; Phelan, W. A. ; Liu, L.FZJ* ; Morey, J. R. ; Tutmaher, J. A. ; Neuefeind, J. C. ; Huq, A. ; Stone, M. B. ; Feygenson, M. (Corresponding author)FZJ* ; Tam, D. W. ; Frandsen, B. A. ; Trump, B. ; Wan, C. ; Dunsiger, S. R. ; McQueen, T. M. ; Uemura, Y. J. ; Broholm, C. L.

2019
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/27437  doi:10.1103/PhysRevLett.122.197203

Abstract: We report the discovery of incommensurate magnetism near quantum criticality in CeNiAsO through neutron scattering and zero field muon spin rotation. For T<TN1=8.7(3)  K, a second order phase transition yields an incommensurate spin density with a wave vector k=(0.44(4),0,0). For T<TN2=7.6(3)  K, we find coplanar commensurate order with a moment of 0.37(5)μB, reduced to 30% of the saturation moment of the |±12⟩ Kramers doublet ground state, which we establish through inelastic neutron scattering. Muon spin rotation in CeNiAs1−xPxO shows the commensurate order only exists for x≤0.1 so we infer the transition at xc=0.4(1) is between an incommensurate longitudinal spin density wave and a paramagnetic Fermi liquid.

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Contributing Institute(s):

1. Neutronenstreuung (ICS-1)
2. Neutronenstreuung (JCNS-1)
3. JCNS-ESS (JCNS-ESS)
4. Troposphäre (IEK-8)

Research Program(s):

1. 551 - Functional Macromolecules and Complexes (POF3-551) (POF3-551)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
3. 6215 - Soft Matter, Health and Life Sciences (POF3-621) (POF3-621)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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