Zero-field spin relaxation of the positive muon in copper

Abstract

+The spin relaxation of the f in high purity single crystal and polycrystalline copper has been measured at temperatures between 0.5 K and 5.2 K by the zero-field f+SR technique. In both types of sample the experiments show a temperature independent dipolar width The relationship between the zero-field and transverse-field dipolar widths is discussed, and the measured zero-field width is found to be -10% larger than expected based on the known transversefield widths.