Frequency performance of 12 906 /spl Omega/ and 6 453 /spl Omega/ reference resistors for ac quantum Hall effect experiments: results of a Euromet project

Abstract

To enable quantifying the degree of equivalence of different ways of measuring quantized Hall resistances, 12 906 /spl Omega/ and 6 453 /spl Omega/ travelling resistors have been prepared and utilized as transfer standards in a comparison based on measurement of their frequency performances at a number of laboratories.