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Figure 7
(a), (b) Magnetic phase diagrams inferred from a.c. susceptibility for (a) H-increasing and (b) H-decreasing scans at different temperatures. The colour scale denotes the size of χ′. (c), (d) Intensity phase diagrams inferred from SANS for (c) H-increasing and (d) H-decreasing scans at different temperatures. The colour scale denotes the ratio of summed SANS intensities obtained from integrating over the blue and green 90° wide sector box pairs indicated by the inset drawing above panel (c). In all panels, white symbols denote the upper critical field Hc which was determined to be the field where the slope of the H-dependent SANS intensity in the boxes parallel to the field [green boxes denoted I(φ = 90°)] decreases [see the black arrows in Figs. 5[link](f) and 6[link](f)]. Since estimates for Hc were difficult to obtain from the a.c. susceptibility data (due to its very smooth H dependence), the same values for Hc determined from the SANS data are plotted on colour maps shown in panels (a) and (b).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 55| Part 5| October 2022| Pages 1219-1231
https://doi.org/10.1107/S1600576722007403
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