A heterospin pressure sensor

The effect of external pressure on the magnetic properties was studied for the first time for heterospin crystals based on the Cu(II) complex with nitroxide [Cu(hfac)2NN-PzMe], which exhibits a spin-crossover-like phenomenon. An increase in the hydrostatic pressure to 0.14 GPa caused a significant shift of the magnetic anomaly temperature (from 150 K to 300 K). This complex actually functions as a highly sensitive external pressure sensor.