The thermoelectric anomaly at 35°C in chromium
- 1 February 1963
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 8 (86) , 311-322
- https://doi.org/10.1080/14786436308211128
Abstract
The thermoelectric power of chromium against copper has been investigated in the range 30–40°C using 20 specimens of chromium varying in purity, grain size and state of strain. In all cases there is a sharp fall in thermoelectric power as the temperature rises through ∼35°C. For all high-purity specimens this transition temperature is in the range 35·3 ± 0·8°C. The strength of the anomaly is affected very little by variations in the interstitial impurities nitrogen and oxygen, but is clearly inflenced by small strains in the material and by changes in grain size. The results are considered in terms of anti-ferromagnetic ordering and the influence of internal stresses on domain structure.Keywords
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