DOE Development of Designer Diamonds Research Team Facilities Patents What is a designer diamond anvil? Electrical Measurements Using Designer Diamond Anvils Multitasking Designer Diamonds -- Vertical Integration of Multiple Sensors Isotopically-Enriched Designer-Diamond Anvil Research Publications resulting from the grant: HIGH PRESURE MATERIALS RESEARCH Contact Us		Electrical Measurements Using Designer Diamond Anvils Electrical measurements under high pressures using designer diamonds have been carried out to 179 GPa on rare earth metal praseodymium (Fig. 2 and Fig. 3)
		Figure 2: Photomicrograph of the Pr sample in an eight-probe designer diamond anvil at a pressure of 56 GPa. The flat size or culet of the designer diamond anvil is 250 microns and Pr sample size is 80 microns in diameter at the center of anvil. The eight probes coming from underneath the diamond lie on a circle of 35 microns in diameter. The direction of the current (I) flow and polarity of the voltage leads are indicated in this four-probe configuration.		Figure 3: Electrical resistance of Pr sample using the four probe measurements during a compression cycle to 179 GPa. The resistance drop of 59 % at 20 GPa phase transition is indicated

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University of Alabama at Birmingham, Department of Physics