期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 1, 页码 146-150出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201707568
关键词
coordination polymers; kagome lattice; quantum criticality; quantum spin liquids; superconductivity
资金
- National Key Research Program of China [2017YFA0204701, 2016YFA0300604]
- Chinese Ministry of Science and Technology [2011CB932304, 2013CB632506]
- National Basic Research Program of China 973 Program [2015CB921303]
- Chinese Academy of Sciences [XDB12000000, XDB07020100]
- National Natural Science Foundation of China [21290191, 21333011, 21661132006]
- Scientific User Facilities Division, U.S. Department of Energy
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 0.25K, which is confirmed by the zero resistivity, AC magnetic susceptibility, and specific heat measurements. Another diamagnetic transition at about 3K 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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