Figure 4: Neutron diffraction measurements of Y2Ti2O7 under applied pressure.
From: Ground state selection under pressure in the quantum pyrochlore magnet Yb2Ti2O7
(a) Diffraction data sets from 400 to 100 mK after the 800 mK data set has been subtracted. Error bars are not shown for clarity. (b) Ordered moment versus temperature determined by neutron diffraction for P=11(2) kbar (blue, left axis) and magnetic fraction determined by μSR for P=12.2 kbar (orange, right axis). Error bars of the ordered moment represent s.d. of the refinement. Schematic spin structure of the ice-like splayed ferromagnet with θ=14° for P=0 (c) and θ=5° for P=11 kbar (d), where θ is the splay angle between the [001] direction and the magnetic moment, tilted towards the local [111] directions of the tetrahedron.
