(Er_<1-χ>Tb_χ)_2Fe_<14>Bの逐次スピン再配列転移と格子変形

概要

論文の詳細を見る
Highly-oriented (Er_<1-χTb_χ>_2Fe_<14>B rebbons with 0≤χ≤0.45 were fabricated by a rapid-quenching method. The c-axis of the tetragonal cell was aligned perpendicular to the ribbon surface. Magnetostriction measurements were made by using the capacitance method, and showed that the sum of the longitudinal and transverse magnetostriction λ_//+λ_⊥ within the ribbon plane took a maximum at successive spin-reorientation temperatures. A model calculation of the volume change ΔV/V in the vicinity of the spin-reorientation temperatures was made by assuming that only the lowest crystal field term A^0_2 affects the volume change. This calculation showed that △V/V exhibits a sharp peak at spin-reorientation temperatures, which is in accordance with the experimental peaks of λ_//+λ_⊥.
社団法人日本磁気学会の論文
1998-04-15