| Autor: |
Rocco, Daniel L., de Campos, Ariana, Carvalho, Alexandre Magnus G., Caron, Luana, Coelho, A. A., Gama, S., Gandra, Flávio C. G., dos Santos, Adenilson O., Cardoso, Lisandro P., von Ranke, Pedro J., de Oliveira, Nilson A. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 6/11/2007, Vol. 90 Issue 24, p242507, 3p, 4 Graphs |
| Abstrakt: |
Magnetic refrigeration is a good alternative to gas compression technology due to higher efficiency and environmental concerns. Magnetocaloric materials must exhibit large adiabatic temperature variations and a large entropic effect. MnAs shows the colossal magnetocaloric effect under high pressures or with Fe doping. In this work the authors introduce a class of materials—Mn1-xCuxAs—revealing a peak colossal effect of -175 J/(K kg) for a 5 T field variation at 318 K and ambient pressure. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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