Superconductivity in a Copper(II)‐Based Coordination Polymer with Perfect Kagome Structure |
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| Authors: | Xing Huang Dr Shuai Zhang Liyao Liu Lei Yu Prof Genfu Chen Prof Wei Xu Prof Daoben Zhu |
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| Institution: | 1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China;2. University of Chinese Academy of Sciences, Beijing, China;3. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China;4. Department of Chemistry, University of Kentucky, Lexington, KY, USA;5. Collaborative Innovation Center of Quantum Matter, Beijing, China |
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| Abstract: | A highly crystalline copper(II) benzenehexathiolate coordination polymer (Cu‐BHT) has been prepared. The two‐dimensional kagome structure has been confirmed by powder X‐ray diffraction, high‐resolution transmission electron microscopy, and high‐resolution scanning transmission electron microscopy. The as‐prepared sample exhibits bulk superconductivity at about 0.25 K, which is confirmed by the zero resistivity, AC magnetic susceptibility, and specific heat measurements. Another diamagnetic transition at about 3 K suggests that there is a second superconducting phase that may be associated with a single layer or few layers of Cu‐BHT. It is the first time that superconductivity has been observed in a coordination polymer. |
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| Keywords: | coordination polymers kagome lattice quantum criticality quantum spin liquids superconductivity |
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