کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1800781 | 1024545 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Magnetic and magnetocaloric properties of martensitic Ni2Mn1.4Sn0.6 Heusler alloy Magnetic and magnetocaloric properties of martensitic Ni2Mn1.4Sn0.6 Heusler alloy](/preview/png/1800781.png)
The evolutions of magnetic properties at low temperatures and the influence of magnetic field on the temperature dependence of specific heat in martensitic Ni2Mn1.4Sn0.6 Heusler alloy are studied. The frequency-dependent blocking temperature and considerable exchange bias below it are measured in the martensitic phase. From the analysis of the specific heat curves under magnetic field, a large inverse magnetocaloric effect manifested as the magnetic field induced rise of isothermal magnetic entropy and/or magnetic field induced adiabatic temperature decrease in the vicinity of the reverse magnetostructural transformation and a significant value of the conventional magnetocaloric effect at the Curie temperature are obtained. The Debye temperature and electronic coefficient equal to ΘD=310±2 K and γ= 16.6±0.3 mJ/K2mol, respectively, do not depend on the magnetic field.
Journal: Journal of Magnetism and Magnetic Materials - Volume 324, Issue 21, October 2012, Pages 3519–3523