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Measurements of the Zener Effect and Kinetics of Short‐Range Order in Two AuCu Alloys (Containing 14 and 25 at% Cu)
Author(s) -
Radelaar S.,
Ritzen J. M. J.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690310133
Subject(s) - zener diode , quenching (fluorescence) , electrical resistivity and conductivity , alloy , relaxation (psychology) , condensed matter physics , atmospheric temperature range , range (aeronautics) , materials science , short range order , order (exchange) , thermodynamics , chemistry , metallurgy , physics , composite material , optics , voltage , psychology , social psychology , finance , resistor , economics , fluorescence , quantum mechanics
Abstract Measurements of the Zener relaxation effect and resistivity measurements of the establishment of short‐range order in two AuCu alloys (containing 14 and 25 at% Cu, respectively) are described. The relaxation times of both effects agree quite closely for the 14 at% Cu alloy. However, for the 25 at% Cu alloy the relaxation time determined from the resistivity measurements shows an anomalous increase as the critical temperature for long‐range order is approached from the high temperature side. This effect is discussed in terms of a current model for short‐range order above the critical temperature. The activation energies obtained from the Zener effect data are compared with the results of quenching experiments in these alloys.