TY  - JOUR
AU  - Wu, Shan
AU  - Phelan, W. A.
AU  - Liu, L.
AU  - Morey, J. R.
AU  - Tutmaher, J. A.
AU  - Neuefeind, J. C.
AU  - Huq, Ashfia
AU  - Stone, Matthew B.
AU  - Feygenson, M.
AU  - Tam, David W.
AU  - Frandsen, Benjamin A.
AU  - Trump, Benjamin
AU  - Wan, Cheng
AU  - Dunsiger, S. R.
AU  - McQueen, T. M.
AU  - Uemura, Y. J.
AU  - Broholm, C. L.
TI  - Incommensurate Magnetism Near Quantum Criticality in CeNiAsO
JO  - Physical review letters
VL  - 122
IS  - 19
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2019-05722
SP  - 197203
PY  - 2019
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 31144966
UR  - <Go to ISI:>//WOS:000468228600011
DO  - DOI:10.1103/PhysRevLett.122.197203
UR  - https://juser.fz-juelich.de/record/866643
ER  -