Figure 2
From: Observation of antiferromagnetic order collapse in the pressurized insulator LaMnPO
Arrhenius plots of the temperature dependence of the resistance at different pressures for the LaMnPO single crystal and its activation energy gap εA as a function of pressure.
(a) Resistance as a function of the reciprocal temperature, measured at different pressures. Solid lines are the best high-temperature fits. (b) The pressure dependence of the activation energy gap εA, which shrinks rapidly with increasing pressure below 15 GPa, remains almost unchanged in the pressure range 15–20 GPa, declines with further increasing pressure and finally vanishes at a pressure of 32 GPa. The insets display the corresponding R-T curves measured at representative pressures.
