Figure 5 | Scientific Reports

Figure 5

From: High Pressure Experimental Studies on CuO: Indication of Re-entrant Multiferroicity at Room Temperature

Figure 5

(a) Pressure evolution of relative lattice parameters with respect to the ambient pressure value up to 10 GPa. The monoclinic axis almost follows the unit cell volume compression indicating its importance in enhancement of magnetic frustration. (b) Plot of normalized pressure H versus fE in the monoclinic phase of CuO, which shows a kink at 3.4 GPa. Red line shows the linear fit of the data above and below 3.4 GPa, separately. (c) Background subtracted XRD pattern of CuO at various pressures are plotted highlighting the change in position of (2,0,−2) Bragg peak indicating an expansion perpendicular to this plane.

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