| Zugriffsnummer | 47746 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | PdPtAu alloys for low‐temperature precision resistors |
| Autor(in); Institution |
March, Joachim-Friedrich; PTB-Berlin
Thurley, Fritz; 9.35, Metallphysik, PTB-Berlin
|
| Quelle/Jahr | Review of Scientific Instruments: 50 (1979), 5, 616 - 618 |
| ISSN | 0034-6748 (PRINT) ; 1089-7623 (ONLINE) |
| DOI | |
| Verlag | Melville, NY: AIP Publishing |
| Zusammenfassung | Palladium‐rich PdPt and PdAu alloys exhibit a resistance–temperature behavior characterized by flat minima even after eliminating the Kondo effect by oxidation of the impurities. The opposite signs of their thermoelectric potentials against a superconductor permit the preparation of ternary PdPtAu alloys free of a thermoelectric power. The measurements resulted in a nomogram suitable for determining the composition of the alloy necessary for a resistivity minimum at a given temperature between 1.5 and 4.2 K. Alloys manufactured in this way have a temperature coefficient of resistivity of less than 10−6/K within a temperature interval of 0.5 K and a thermoelectric power against a superconductor of less than 1 nV/K. |
