Triple-Kagomé-Layer Slabs of Mixed-Valence Rare-Earth Ions Exhibiting Quantum Spin Liquid Behaviors: Synthesis and Characterization of Eu₉MgS₂B₂₀O₄₁

Abstract

We prepared a new rare-earth compound, Eu9MgS2B20O41 (EMSBO), and characterized its structural and physical properties. EMSBO consists of triple-Kagomé-layer slabs separated by nonmagnetic ions and groups. Within each slab, intervalence charge transfer has been found to occur between the Eu2+ and Eu3+ Kagomé layers, a new channel for quantum fluctuation of magnetic moments. The measured magnetic susceptibilities and the specific heat capacity exhibit very similar features characteristic of quantum spin liquid behaviors observed in other materials.

KEu2In3B12S13: a novel type of thioborate featuring B12S12 cluster and unique In6S6 12-membered ring

“…[26][27][28][29][30][31][32][33] The combination of borates and chalcogenides has also demonstrated promising NLO and special magnetic properties. [34][35][36] Therefore, it is interesting to combine these aspects to explore chalcogenoborates as new functional materials.…”

Designing a Deep-UV Nonlinear Optical Fluorooxosilicophosphate

“…The SHG response mainly results from the electron transition between the top of the valence band and the bottom of the conduction band . To intuitively view the contributions of the SHG response, the SHG-weighted densities of the occupied state in the virtual electron process and unoccupied state in the virtual hole process were calculated to analyze and elucidate the microscopic origins of the optical properties, as the virtual electron and virtual hole processes make the dominant contributions to the overall SHG effect. As shown in Figure a and b, we can deduce that the SiP 2 O 10 F moiety makes the major contributions to the total SHG response.…”

NaRbB3O4F3: A New Fluorooxoborate with a Short UV Cutoff Edge Enriching the Structural Chemistry of Borate

“…As is known to all, the B atoms can be sp 2 or sp 3 hybridized with the O atoms to construct π‐ conjugated [5,6] [BO 3 ] 3− or tetrahedral [BO 4 ] 5− units [7–12] . Furthermore, the polymerization of these B−O units can produce a wide variety of anionic frameworks from zero‐dimensional (0D) to 3D, resulting in the discovery of thousands of borates with complex structural chemistry [13–19] …”