### HEAT CAPACITY OF $gamma$-CuZn ALLOYS BELOW 4.2 KHEAT CAPACITY OF $gamma$-CuZn ALLOYS BELOW 4.2 K

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 Author Veal, B. W. ♦ Rayne, J. A. Source United States Department of Energy Office of Scientific and Technical Information Content type Text Language English
 Subject Keyword PHYSICS ♦ BRASS ♦ BRILLOUIN ZONE ♦ COPPER ALLOYS ♦ DEBYE TEMPERATURE ♦ ELECTRONS ♦ ENERGY LEVELS ♦ ENRICHMENT ♦ FERMI GAS ♦ FERMI LEVEL ♦ FERMIONS ♦ HEAT CAPACITY ♦ IMPURITIES ♦ LATTICES ♦ LOW TEMPERATURE ♦ MEASURED VALUES ♦ OSCILLATIONS ♦ SPECIFIC HEAT ♦ SPHERES ♦ SURFACES ♦ TEMPERATURE ♦ ZINC ALLOYS Abstract Low-temperature heat capacity measurements were made on a series of high- purity specimens covering the entire gamma phase of the Cu-- Zn system. The electronic heat capacity decreases rapidly with increasing zinc concentration, thereby lending support to the hypothesis that the gamma brasses are electron compounds. An excellent fit to the data may be obtained by assuming that the Fermi surface of these alloys is spherical and makes contact with the large Brillouin zone of the gamma -brass structure. The Debye temperature of the alloys is 433 deg K and is approximately independent of zinc concentration. (auth) ISSN 0031899X Educational Use Research Learning Resource Type Article Publisher Date 1963-11-15 Publisher Department Westinghouse Research Labs., Pittsburgh Journal Physical Review Volume Number 132 Organization Westinghouse Research Labs., Pittsburgh