| Autor: |
Nikitin, S. A., Smirnov, A. V., Ovchenkova, I. A., Ovchenkov, Y. A. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2018, Vol. 124 Issue 8, pN.PAG-N.PAG, 8p, 3 Charts, 8 Graphs |
| Abstrakt: |
The magnetic, magnetocaloric, thermal expansion, magnetostriction, and heat capacity measurements of Gd5−xTixSi2Ge2 (x = 0, 0.05, 0.1) compounds have been carried out in a wide range of fields and temperatures. The Ti addition was found to increase the temperature of magnetic ordering and change the order of phase transition with preservation of high magnetocaloric effect values. At the same time, the large temperature and field hysteresis, observed for ΔT-effect in Gd5Si2Ge2, significantly decrease when Ti is added. The obtained results can be explained by the decoupling of magnetic and structural phase transition with Ti substitution. It is also shown that the magnetoelastic energy has a the strong influence on the type of phase transition for investigated compounds. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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