A spin-1/2 gapped compound CdCu2(SeO3)2Cl2 with a ladder structure. Issue 56 (22nd June 2021)

• Record Type: Journal Article
• Authors: Zhang, Mengsi; Cui, Meiyan; Zhao, Zhiying; Huang, Xing; He, Zhangzhen
• Is Part Of: Chemical communications. Volume 57:Issue 56(2021)
• Page Start: 6923
• Page End: 6926
• Publication Date: 2021-06-22
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc02243a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A new spin-1/2 two-leg ladder compound CdCu2 (SeO3 )2 Cl2 possesses a singlet ground state with a large spin gap of ∼409 K. Abstract : The exploration of two-leg spin-ladder materials is a great challenge to the chemical community since it is one of the most ideal models for the study of low-dimensional magnetism and high- T c superconductivity. Herein, we report on a successful synthesis of a new Cu 2+ -based two-leg ladder compound constructed by CuO4 Cl2 octahedra along the [101] direction. The magnetic results exhibit a broad peak at T max ∼ 265 K, and suggest that CdCu2 (SeO3 )2 Cl2 has a spin singlet ground state. The fitting of the isolated two-leg spin-ladder model shows J ⊥ / k B = 429 K and J ‖ / k B = 21 K, leading to a large spin gap of ∼409 K.