Magnetically Diluted Dy³⁺ and Yb³⁺ Squarates Showing Relaxation Tuning and Matrix Dependence.

ABSTRACT: A new compound [Y₂(sq)₃(H₂O)₄] (Y-sq; sq = squarate (C₄O₄^2-)) was prepared and structurally characterized. Since the RE-sq family (RE = Y, Dy, Yb, Lu) gave isostructural crystals, the objective of this study is to explore the effects of diamagnetic dilution on the SIM behavior through systematic investigation and comparison of diamagnetically diluted and undiluted forms. The 1%-Diluted Dy compounds, Dy@Y-sq and Dy@Lu-sq, showed AC magnetic susceptibility peaks without any DC bias field (H_DC), whereas undiluted Dy-sq showed no AC out-of-phase response under the same conditions. The Orbach and Raman mechanisms are assumed in the Arrhenius plots, giving U_eff/k_B =

SUBMITTER: Takano R 

PROVIDER: S-EPMC11767464 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature