The transformation of the magnetostructural phase transition with Ti addition in Gd5Si2Ge2
| Autor: | S.A. Nikitin, Andrey Smirnov, I.A. Ovchenkova, A.E. Bogdanov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Phase transition Structural phase Materials science Condensed matter physics Physics QC1-999 Magnetostriction 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Thermal expansion Magnetization Hysteresis Condensed Matter::Materials Science Transformation (function) Volume (thermodynamics) 0103 physical sciences Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | EPJ Web of Conferences, Vol 185, p 05006 (2018) |
| Popis: | The magnetic, thermal expansion and magnetostriction measurements of Gd5-xTixSi2Ge2 (x=0, 0.05, 0.1) compounds have been carried out in wide range of fields and temperatures. It is found that Ti addition leads to the disappearance of the structural transformation, the change of the order of the phase transition and the decrease of the hysteresis. The large positive magnetostriction associated with the structural phase transition in Gd5Si2Ge2 changes to the small negative one associated with the magnetic phase transition in Gd4.9Ti0.1Si2Ge2. The linear dependence of volume magnetostriction on the square of magnetization obtained for all investigated compounds is explained using the thermodynamic theory. |
| Databáze: | OpenAIRE |
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