Quantum
Spin Liquid State in a Two-Dimensional Semiconductive
Metal–Organic Framework
Posted on 2020-07-08 - 15:37
Two-dimensional
metal–organic frameworks (2D MOFs) have
attracted much attention, as they are the crystalline materials that
exhibit both conductivity and microporosity. Numerous efforts have
been made to advance their application as chemiresistive sensors or
electrochemical capacitors. However, the intrinsic physical properties
and spin states of these materials remain poorly understood. Most
of these 2D MOFs possess a honeycomb lattice, with a Kagomé
lattice arrangement of metal cations. These structural characteristics
suggest that these MOFs would be candidates for geometrically frustrated
spin systems with unprecedented magnetic phenomena. Herein, by performing
magnetic susceptibility and specific heat measurements at an ultralow
temperature down to 38mK on a 2D semiconductive MOF, Cu3(HHTP)2, a quantum spin liquid state that arises from
the geometrical frustration was suggested. This result illustrates
the potential of strongly correlated MOFs as systems with emergent
phenomena induced by unusual structural topologies.
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Misumi, Yuki; Yamaguchi, Akira; Zhang, Zhongyue; Matsushita, Taku; Wada, Nobuo; Tsuchiizu, Masahisa; et al. (2020). Quantum
Spin Liquid State in a Two-Dimensional Semiconductive
Metal–Organic Framework. ACS Publications. Collection. https://doi.org/10.1021/jacs.0c05472