Uniaxial Strain Induced Superconductivity in Quantum Spin Liquid κ-(ET)2Ag2(CN)3

Tomeno, Shinya; Maesato, Mitsuhiko; Yoshida, Yukihiro; Hiramatsu, Takeshi; Saito, Gunzi; Kitagawa, Hiroshi

doi:10.7566/jpsj.89.054709

Cited by 2 publications

(1 citation statement)

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“…This can be realized by applying an external uniaxial pressure in the diagonal direction, or, alternatively, by a chemical substitution in the anion plane. In this respect it has been recently observed that uniaxial strain destabilizes the Mott-Hubbard phase and induces superconductivity in kappa-ET-Cu and kappa-ET-Ag (Tomeno et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

New insights into the structural properties of κ-(BEDT-TTF)₂Ag₂(CN)₃spin liquid

Foury-Leylekian

Ilakovac

Fertey

et al. 2020

Acta Crystallogr Sect B

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Here, the first accurate study is presented of the room-temperature and 100 K structures of one of the first organic spin liquids, κ-(BEDT-TTF)2Ag2(CN)3. It is shown that the monoclinic structure determined previously is only the average one. It is shown that the exact structure presents triclinic symmetry with two non-equivalent dimers in the unit cell. But surprisingly this does not lead to a sizeable charge disproportionation between dimers. The difference from the analogue compound κ-(BEDT-TTF)2Cu2(CN)3 which also presents a spin liquid phase is discussed in detail. The data provided here show the importance of the anionic layer and in particular the transition metal position in the process of symmetry breaking. The possible impact of the symmetry breaking, albeit weak, on the spin-liquid mechanism and the influence of various disorders on the physical properties of this system is also discussed.

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Section: Resultsmentioning

confidence: 99%