Electronic structure and magnetostrictive sensitivity of Fe-B metallic glasses

• Published in: Физика низких температур
• Date: 2001
• Main Authors: Beznosov, A.B., Fertman, E.L., Eremenko, V.V., Desnenko, V.A.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2001
• Subjects: Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/130022
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Electronic structure and magnetostrictive sensitivity of Fe-B metallic glasses / A.B. Beznosov, E.L. Fertman, V.V. Eremenko, V.A. Desnenko // Физика низких температур. — 2001. — Т. 27, № 4. — С. 425-429. — Бібліогр.: 10 назв. — англ.

The effect of mechanical tensile stresses 0 ≤ σ ≤ 62 MPa on the low-field (0 ≤ H ≤ 45 Oe) magnetization curves of the metallic glasses Fe₁₀₀₋xBx (x=14, 16, 17, 20) is studied at temperatures of 77 and 300 K. The correlation between the electronic structure of the glasses and their magnetostrictive sensitivity ks is revealed: the eutectic metallic glass Fe₈₃B₁₇, which possesses a special electronic structure with a 30% lower conduction (sp) electron density, has a value of ks differing substantially from that of the other metallic glasses studied. Under low stresses (0 ≤ σ ≤ 22 MPa) the eutectic alloy possesses a magnetostrictive sensitivity ks(σ₁) which is higher than that of the rest of the alloys studied, while under high stresses (22 MPa ≤ σ ≤ 62 MPa) its magnetostrictive sensitivity ks(σ₂) is close to zero.