【正文】
by the pressure. Xray diffraction measurement Electrical property Electrical density of states at 0, 50 and 100 GPa were calculated. Insulator to metal transition? (P 100 GPa) Purpose of this experiment the insulator to metal transition in AlH3 To observe the crystal structure under high pressure ? Xray diffraction measurement ? electrical resistance measurement were performed under high pressure. Experimental method ? Xray diffraction measurement ( at European Synchrotron Radiation Facility) ( P 110 GPa , T = 300 K) ? Electrical resistance measurement ( P 164 GPa , 4 K T 300 K) ? quasifourprobe measurements ? pressure gauge : ruby