Signatures of the quantum spin liquid state in triangular-based zig-zag polyaromatic hydrocarbon radicals.

ABSTRACT: Alkali-metal doped polyaromatic hydrocarbons (PAHs) have shown great potential in realizing exotic states of matter such as quantum spin liquids (QSLs). However, it is challenging to obtain new pure-phase candidates and perform experimental identifications accordingly. Here, we report the discovery and characterization of Cs(chrysene˙^-)(THF)_0.5·(THF)_0.25 (1, THF = tetrahydrofuran), a pure-phase spin-½ organic magnet composed of triangular-based zig-zag magnetic layers, which give rise to strong spin frustration. Electron paramagnetic resonance and optical analyses show 1 is a Mott insulator. Despite the strong antiferromagnetic coupling, low-temperature specific heat and ac susceptibility demonstrate the absence of both long-range magnetic order and spin-gl

SUBMITTER: Shen Y 

PROVIDER: S-EPMC11905111 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature