講演情報
[16a-K102-6]Chemical composition analysis of (Y1-xDyx)Ba2Cu4O8 single crystals via magnetic properties.
〇(M2)Pamoda Piyumali Kahagalla1, Shintaro Adachi1, Fumiko Kimura1, Ataru Ichinose2, Shigeru Horii1 (1.KUAS, 2.CRIEPI)
キーワード：
Magnetic anisotropy、Solubility of Dy、Tri-axial magnetic alignment
Grain orientation using modulated rotational magnetic fields (MRFs) offers an efficient alternative to epitaxial growth methods, especially for materials with tri-axial magnetic anisotropy. Precise control of magnetic anisotropy is critical for effective alignment in low-viscosity (η) colloidal solutions and can be achieved by mixing rare-earth (RE) ions to balance anisotropy. The absence of the twin microstructure in Y124 removes complications associated with in-plane magnetic anisotropy, offering clearer insights into the mechanisms driving grain alignment. In this study, (Y1-xDyx)Ba2Cu4O8 single crystals were synthesized using the KOH flux method under ambient pressure. However, the uniform distribution of the two RE ions within the material remains unclear. To overcome the limitations of localized techniques like TEM-EDX, magnetic measurements were used to determine Dy concentration (x) through variations in average magnetic susceptibility (χ), critical temperature (Tc), and effective magnetic moment (μeff) at RE site.