Specific heat of spin-density-wave CrMn alloys
| Autor: | W.A. Ortiz, Jost Diederichs, Eric Fawcett, Stefano Spagna, R. C. Black, V. Yu. Galkin |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Curie–Weiss law
Materials science Condensed matter physics Alloy Analytical chemistry Electron Atmospheric temperature range engineering.material Condensed Matter Physics Magnetic susceptibility Electronic Optical and Magnetic Materials engineering Curie temperature Spin density wave Curie constant Electrical and Electronic Engineering |
| Zdroj: | Physica B: Condensed Matter. 339:137-141 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/s0921-4526(03)00390-9 |
| Popis: | The specific heat of 14 samples of the spin-density-wave alloy system Cr 1− x Mn x (0⩽ x ⩽19.4% Mn) were measured over the temperature range, 1.8⩽ T ⩽10 K. The electron specific heat coefficient γ ( x ) was found to change little from the value for pure Cr, γ ≈1.3 mJ/mole K 2 , until it increases to ≈2 mJ/mole K 2 around x ≈7% Mn, and then again to ≈5 mJ/mole K 2 around x ≈12% Mn, with further monotonic increase up to the highest concentration. This behavior parallels that of the magnetic properties measured previously in the same samples, and in particular the Curie constant (the alloys show Curie–Weiss behavior for x >7% Mn) and the differential susceptibility both increase rapidly around x ≈12% Mn. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect