๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Measurements of the atomic heats of tin in the superconductive and in the non-superconductive state

โœ Scribed by W.H. Keeson; P.H. van Laer

Publisher
Elsevier Science
Year
1938
Weight
335 KB
Volume
5
Category
Article
ISSN
0031-8914

No coin nor oath required. For personal study only.

โœฆ Synopsis

In this paper we give a report of measurements on the atomic heats of tin in the superconductive state and while placed in a magnetic field so as to destroy superconductivity. In the superconductive state the atomic heat appears to follow a T*-law. For the atomic heat in the normal state it was possible to find values of ยฎD and T so as to satisfy the equation Cn = 464.5 (T/ยฎ) a -~.yT: The linear term may be ascribed to the electronic heat capacity according to S o m m e r f e 1 d. We find a value of y = 0,00040, corresponding to 7.2 "free electrons per atom".

The differenc.e Cs --Cn and Ss --Sn arising from these measurements appear to agree very well with those obtained from the threshold value curve.

The specific heat in the normal state does not show any dependence on the magnetic field.

๐Ÿ“œ SIMILAR VOLUMES

Measurements of the latent heat of tin w
Measurements of the latent heat of tin while passing from the superconductive to the non-superconductive state at constant temperature
โœ W.H. Keesom; P.H. van Laer ๐Ÿ“‚ Article ๐Ÿ“… 1937 ๐Ÿ› Elsevier Science โš– 549 KB

In this paper we give the results of a few latent heat measurements carried out on tin while it is passing from the superconductive to the . normal state by increasing the external magnetic field at constant temperature. The values of the latent heat thus measured agree very well with the formula d

The thermoelectric force of a supercondu
The thermoelectric force of a superconductor against the same metal in the non-superconductive state
โœ J.A. Kok ๐Ÿ“‚ Article ๐Ÿ“… 1937 ๐Ÿ› Elsevier Science โš– 135 KB

The author points out the similarity of Go r t e r's cycle and a thermoelectric cycle, consisting of one metal, partially in the superconductive and partially in the non-superconductive state. From a plausible assumption he derives relations for the thermoelectric properties.