Electronic specific heat of Mn-Cu alloys
| Autor: | J.E. Zimmerman, H. Sato |
|---|---|
| Rok vydání: | 1961 |
| Předmět: |
Specific heat
Chemistry Liquid helium chemistry.chemical_element Thermodynamics General Chemistry Electronic density of states Condensed Matter Physics Copper Heat capacity law.invention Transition metal law visual_art Lattice (order) Electronic component visual_art.visual_art_medium General Materials Science |
| Zdroj: | Journal of Physics and Chemistry of Solids. 21:71-75 |
| ISSN: | 0022-3697 |
| DOI: | 10.1016/0022-3697(61)90212-8 |
| Popis: | The specific heats of face-centred-cubic manganese-copper alloys at liquid helium temperatures have been measured for copper concentrations between 31 2 and 90 wt. per cent. Analysis of the results shows that the major specific heat component is electronic, and that this exhibits a broad maximum of about 12 × 10−3 J mol deg2 between 10 and 30 wt. per cent Cu. At lower Cu concentration the electronic component dips sharply and it is estimated that for pure Mn (γ-phase) the electronic component should be of the same magnitude or lower than in the other transition elements, in contrast to the anomalously large values found in the α- and β-phases of Mn. Implications of the specific heat data on the electronic density of states curve and on the magnetic properties of MnCu alloys are discussed. The lattice component of the heat capacity appears to vary only moderately with concentration. |
| Databáze: | OpenAIRE |
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