3-sample, 6-lead Bridgman anvil assembly for resistivity measurements to 100 Kbar

An analysis of the mechanical behavior of gaskets in a Bridgman anvil under high pressure clearly reveals an inherent source of nonreproducibility in the stress system from run to run. This problem has been shown to be overcome by designing a 3-sample, 6-lead cell in which a calibrant is also mounted along with the sample. The cell is described, and results on pure antimony clearly establish that the structural transition in antimony (at room temperature) occurs, at exactly the high bismuth transition pressure.