Effect of Magnetic Ordering on the Thermoelectric Power of Concentrated Au(Fe) Alloys
作者:
V. Cannella,
J. A. Mydosh,
M. P. Kawatra,
期刊:
Journal of Applied Physics
(AIP Available online 1970)
卷期:
Volume 41,
issue 3
页码: 1421-1422
ISSN:0021-8979
年代: 1970
DOI:10.1063/1.1658971
出版商: AIP
数据来源: AIP
摘要:
We have measured the temperature dependence of the thermoelectric powerS(T)for eight samples of Au(Fe) alloys with concentrationscup to 22 at.% Fe in the temperature range 4°–300°K.S(T)for all samples is always negative and shows a maximum in |S| between 80° and 110°K. For samples withc>12% Fe there are well‐defined transitions in the behavior ofS(T)at temperatures agreeing with the ordering temperatures as determined by other measurements, whereas no distinct transitions are observed forc<12%. These two concentration groups also differ in the concentration dependence of the magnitude ofS(T)and in the temperature dependence of the position of the maximum of |S|. At low temperatures we find thatS(T)follows a behavior:S=AT3/2+BT5/2which suggests a magnon drag contribution toS(T).
点击下载:
PDF
(151KB)
返 回