Theoretical and Experimental Studies of the Structural Chameleon EuYCuTe₃.

ABSTRACT: Layered orthorhombic single crystals of EuYCuTe₃ are synthesized using the ampoule method from the elemental precursors taken in the ratio of 1 Eu:1 Y:1 Cu:3 Te by heating up to 1120 K with an excess of CsI as flux. The orthorhombic structure of EuYCuTe₃ is established, and structural parameters are obtained using X-ray diffraction. At ambient conditions, the sample crystallizes in the space group Pnma with the unit cell parameters a = 11.2730(7) Å, b = 4.3214(3) Å, c = 14.3271(9) Å. The structure is composed of vertex-connected [CuTe₄]^7- tetrahedra, which form chains along the [010] direction, and of edge-connected [YTe₆]^9- octahedra, which form layers parallel to the (010) plane. The Eu^2+</

SUBMITTER: Ruseikina AV 

PROVIDER: S-EPMC11857737 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature