Thermoelectric Power and Electrical Resistivity of Dilute Alloys of Mn, Pd, and Pt in Cu, Ag, and Au

• Published in: Journal of applied physics 1956-03, Vol.27 (3), p.197-200
• Main Author: Otter, F. A.
• Format: Article
• Language: English
• ISSN: 0021-8979; 1089-7550
• DOI: 10.1063/1.1722342

Data are given on the resistivities and thermoelectric powers of the alloys Cu–Pd, Ag–Pd, Au–Pd, Cu–Pt, Ag–Pt, Au–Pt, Cu–Mn, Ag–Mn, and Au–Mn from −195°C to +500°C for the resistivities and to +650°C for the thermoelectric powers. The resistivities of the alloys containing Pd and Pt obey the Matthiessen rule well whereas those with Mn do not. The resistivity of the alloys with more than about 8 atomic % Mn deviate from linearity at the lower temperatures, the temperature of deviation increasing with Mn content. The thermoelectric powers of the Pt and Pd alloys are negative relative to the pure solvents and are reasonably constant relative to the solvents at high temperatures. The thermoelectric powers of the Mn alloys become positive relative to the solvents above certain temperatures (25°C for Cu–Mn, −170°C for Ag–Mn, and 150–250°C for Au–Mn). A brief discussion of the data in relation to theory is given.