首页|Superconductivity with Tc of 116 K discovered in antimony polyhydrides

Superconductivity with Tc of 116 K discovered in antimony polyhydrides

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Superconductivity(SC)was experimentally observed for the first time in antimony polyhydride.The diamond anvil cell combined with a laser heating system was used to synthesize the antimony polyhydride sample at high pressure and high temperature.In-situ high pressure transport measurements as a function of temperature with an applied magnetic field were performed to study the SC properties.It was found that the antimony polyhydride samples show superconducting transition with critical temperature Tc 116 K at 184 GPa.The investigation of SC at magnetic field revealed the superconducting coherent length of～40 Å based on the Ginzburg Landau(GL)equation.Antimony polyhydride superconductor has the second highest Tc in addition to sulfur hydride among the polyhydrides of elements from main groups ⅢA to ⅦA in the periodic table.

high Tc superconductorantimony polyhydrideshigh pressure effects

Ke Lu、Xin He、Changling Zhang、Zhiwen Li、Sijia Zhang、Baosen Min、Jun Zhang、Jianfa Zhao、Luchuan Shi、Yi Peng、Shaomin Feng、Qingqing Liu、Jing Song、Richeng Yu、Xiancheng Wang、Yu Wang、Maxim Bykov、Changqing Jin

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Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China

Songshan Lake Materials Laboratory,Dongguan 523808,China

Institute of Geosciences,Goethe University Frankfurt,Frankfurt 60438,Germany

Institute of Inorganic Chemistry,University of Cologne,Cologne 50939,Germany

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National Key R&D Program of ChinaNational Key R&D Program of ChinaNational Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChinese Academy of Sciences

2021YFA14018002022YFA14023012022YFA140390011921004U2032220XDB33010200

2024

10.1093/nsr/nwad241

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ISSN：
年,卷(期)：2024.11(7)