Anomalous temperature evolution of the internal magnetic field distribution in the charge-ordered triangular antiferromagnet AgNiO2 - Condensed Matter > Strongly Correlated ElectronsReport as inadecuate




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Abstract: Zero-field muon-spin relaxation measurements of the frustrated triangularquantum magnet AgNiO2 are consistent with a model of charge disproportionationthat has been advanced to explain the structural and magnetic properties ofthis compound. Below an ordering temperature of T N=19.92 K we observe sixdistinct muon precession frequencies, due to the magnetic order, which can beaccounted for with a model describing the probable muon sites. The precessionfrequencies show an unusual temperature evolution which is suggestive of theseparate evolution of two opposing magnetic sublattices.



Author: T. Lancaster, S.J. Blundell, P.J. Baker, M.L. Brooks, W. Hayes, F.L. Pratt, R. Coldea, T. Soergel, M. Jansen

Source: https://arxiv.org/







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