- Tytuł:
- Temperature Dependent Magnetic and Structural Properties of Ni-Mn-Ga Heusler Alloy Glass-Coated Microwires
- Autorzy:
-
Shevyrtalov, S.
Chichay, K.
Ershov, P.
Khovaylo, V.
Zhukov, A.
Zhukova, V.
Rodionova, V. - Powiązania:
- https://bibliotekanauki.pl/articles/1387557.pdf
- Data publikacji:
- 2015-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.47.Np
75.60.Ej
75.60.Nt - Opis:
- We report on structural and magnetic properties of glass-coated microwires of Ni-Mn-Ga-based Heusler alloys. Structural characterization of the as-prepared microwires revealed that they have a cubic structure at room temperature. It is shown that magnetic properties of microwires can be tailored by heat treatment as well as by removing the glass coating. Specifically, annealing of the microwires has a marked influence of the Curie temperature $T_{C}$ which increases significatly in the heat-treated samples. Release of internal stresses in the microwires by removing the glass coating causes magnetization and the Curie temperature to decrease. This allowed us to conclude that in the studied microwires the magnetostriction constant is positive and estimate the value of internal stresses as being roughly equal to 1.5 GPa.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 2; 603-605
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł