Figure 2
From: Pressure-induced spin transition and site-selective metallization in CoCl2
Pressure dependence of the optical absorption spectrum of CoCl2. (a) Variation of the charge-transfer absorption threshold in the 0–50 GPa transparency region. The pictures show the piezochromism of CoCl2. (b) Pressure dependence of the Co2+ crystal-field absorption peaks. Peak labeling follows the Tanabe-Sugano diagram of Fig. 1.
