| Autor: |
F.E. Hoare, J.E. Zimmerman |
| Rok vydání: |
1960 |
| Předmět: |
|
| Zdroj: |
Journal of Physics and Chemistry of Solids. 17:52-56 |
| ISSN: |
0022-3697 |
| DOI: |
10.1016/0022-3697(60)90174-8 |
| Popis: |
Specific heats of several specimens of copper alloyed with from 0.14 to 10 wt.% mangan ese were measured at liquid helium temperatures; and for some of the specimens, measurements were extended to 15°K. All exhibit an anomalously large specific heat compared to pure copper, of which the excess is associated with the magnetic transition known to occur in these alloys at low temperatures. The excess entropy associated with the anomaly indicates a spin on the manganese atoms of about 2; but for a number of reasons this spin cannot be established accurately. The shape of the specific heat anomaly is different from any of the well-known theoretical forms, e.g. the Schottky or the λ-point types. At the lowest temperatures the excess specific heat is linear in T and essentially independent of Mn concentration for the entire range of composition studied. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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