✦ LIBER ✦

Contributions to the diffusion thermopower of amorphous CuxSn100-x and Mg70Zn30 films

✍ Scribed by C. Lauinger; J. Feld; E. Compans; P. Haussler; F. Baumann

Book ID: 104356729
Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 210 KB
Volume: 165-166
Category: Article
ISSN: 0921-4526
DOI: 10.1016/s0921-4526(90)80994-t

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✦ Synopsis

In situ thermopower S(T) measurements of quench-condensed amorphous Cu,Snlss-x (25 5 z < 70) and MgrsZnss films are reported. S(T) shows a knee at about 30 K. We explained this structure as being caused by electronphonon interaction and so-called roton-like collective density excitations. In our analysis the sign as well as the absolute value of S(T) at low temperatures agree for the Sn rich samples with the free electron model.

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