Fig. 4
From: Topologically frustrated ionisation in a water-ammonia ice mixture
Diffraction patterns of AMH above 7.4 GPa. a X-ray and b neutron diffraction patterns of AMH, at RT and respective P of 10.3 and 8.6 GPa. The symbols are experimental data after subtraction of background and removal of the reflections from the diamond anvils in the neutron pattern. The purple solid lines are Le Bail (a) or full profile Rietveld (b) refinements using a mixture of \(Im\overline 3 m\) 29 and P4/nmm 33 structures. The green line shows the difference between observed and calculated profiles. Sticks show the positions of Bragg reflections
