Charge imbalance in 
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 and their interplay with superconductivity

Iakutkina, Olga; Uykur, Ece; Kobayashi, Takamichi; Kawamoto, Atsushi; Dressel, Martin; Saito, Yuria

doi:10.1103/physrevb.104.045108

Cited by 4 publications

(1 citation statement)

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“…suggested for BEDT-TTF compounds [35,41]; here we would like to note that, despite this relation was established for the BEDT-TTF molecules, it will also hold for BEDT-STF, as the replacement of some S ions by Se in BEDT-STF or BETS leads to only a small shift in ν 27 of less than 2 or 3 cm −1 , respectively, in absolute value [53,54]. From our data we obtain ∆ρ ≈ 0.043e which is independent of temperature.…”

Section: Vibrational Spectroscopymentioning

confidence: 77%

Dielectric Anomaly and Charge Fluctuations in the Non-Magnetic Dimer Mott Insulator λ-(BEDT-STF)2GaCl4

et al. 2021

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The dimer Mott insulator λ-(BEDT-STF)2GaCl4 undergoes no magnetic order down to the lowest temperatures, suggesting the formation of a novel quantum disordered state. Our frequency and temperature-dependent investigations of the dielectric response reveal a relaxor-like behavior below T≈100 K for all three axes, similar to other spin liquid candidates. Optical measurement of the charge-sensitive vibrational mode ν27(b1u) identifies a charge disproportionation Δρ≈0.04e on the dimer that exists up to room temperature and originates from inequivalent molecules in the weakly coupled dimers. The linewidth of the charge sensitive mode is broader than that of typical organic conductors, supporting the existence of a disordered electronic state.

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Section: Vibrational Spectroscopymentioning

confidence: 77%

Dielectric Anomaly and Charge Fluctuations in the Non-Magnetic Dimer Mott Insulator λ-(BEDT-STF)2GaCl4

et al. 2021

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Organic quantum materials: A review

Wang

Zhang

2023

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Interests in organic quantum materials (OQMs) have been explosively growing in the field of condensed physics of matter due to their rich chemistry and unique quantum properties. They are strongly correlated systems and show novel electromagnetic performance such as high‐temperature superconducting, quantum sensing, spin electronics, quantum dots, topological insulating, quantum Hall effects, spin liquids, qubits, and so forth, which exhibit promising prospects in information communication and thus facilitate the construction of a modern intelligent society. This article reviews recent developments in the research on the electromagnetic characteristics of OQMs. We mainly give an overview on the progress of superconductors and quantum spin liquids based on organic materials and describe their possible mechanisms. Numerous experimental findings exhibit new exciton interactions and provide insights into exotic electronic properties. Finally, their association and strategies for realizing multiple quantum states in one system are discussed.

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