Spontaneous magnetostriction in the Gd-Y system: analysis of phase transformations

• Veröffentlicht in: Физика низких температур
• Datum: 2001
• ISSN: 0132-6414
• Hauptverfasser: Beznosov, A.B., Fertman, E.L., Eremenko, V.V., Pal-Val, P.P., Popov, V.P., Chebotayev, N.N.
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2001
• Schlagworte: Специальный выпуск Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Под редакцией В. В. Еременко и В. А. Сиренко
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/130023
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Spontaneous magnetostriction in the Gd-Y system: analysis of phase transformations / A.B. Beznosov, E.L. Fertman, V.V. Eremenko, P.P. Pal-Val, V.P. Popov, N.N. Chebotayev // Физика низких температур. — 2001. — Т. 27, № 4. — С. 430-435. — Бібліогр.: 20 назв. — англ.

The transformations of magnetic and lattice subsystems states of Gd₁₀₀₋xYx (x=0, 5.5, 7.5, 10.2) alloys have been studied at temperatures 5-370 K in magnetic fields up to 4 kOe. The temperature dependences of elastic modules, thermal expansion, low field magnetization and magnetic anisotropy parameters were obtained. The linear spontaneous striction ΔL(T)/L=xh² was analized, and the effective order parameters η and magnetostrictive parameters ξ were evaluated for the four magnetic phases (canted ferromagnetic, deforming ferromagnetic helix, ferromagnetic helix, and the ferromagnetic cone, respectively): ξcf=2.2×10⁻⁵, ξdh=- 5.3×10⁻⁵, ξfh=7.1×10⁻⁵, ξfc=1.4×10⁻³.