We present the synthesis and the experimental and theoretical study of the new member of
the francisite family, C u 3 Yb (Se O 3) 2 O 2 Cl. The compound reaches an
antiferromagnetic order at TN= 36.7 K and experiences first-order spin-reorientation
transition to weakly ferromagnetic phase at TR= 8.7 K evidenced in specific heat C p and
magnetic susceptibility χ measurements. Distinctly different magnetization loops in T< TR
and TR< T< TN temperature ranges reflect the interplay of rare-earth and transition-metal …

… ©2017 American Physical Society We present the synthesis and the experimental and
theoretical study of the new member of the francisite family, Cu 3 Yb(SeO 3 ) 2 O 2 Cl. The
compound reaches an antiferromagnetic order at TN = 36.7 K and experiences first-order
spin-reorientation transition to weakly … Distinctly different magnetization loops in T < TR and TR
< T < TN temperature ranges reflect the interplay of rare-earth and transition-metal subsystems.
At low temperatures, the saturation magnetization M s ∼ 5.2 μ B is reached in pulsed …