期刊
SCIENCE
卷 351, 期 6279, 页码 1303-1306出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aac8176
关键词
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资金
- European Research Council (ERC) [267777]
- Max Planck Institute for Chemistry, Mainz
- Russian Science Foundation [14-12-00848]
- Russian Foundation for Basic Research [14-02-00483-a]
- Russian Academy of Sciences program Physics of elementary particles, fundamental nuclear physics and nuclear technologies
- Russian Science Foundation [14-12-00848] Funding Source: Russian Science Foundation
High-temperature superconductivity remains a focus of experimental and theoretical research. Hydrogen sulfide (H2S) has been reported to be superconducting at high pressures and with a high transition temperature. We report on the direct observation of the expulsion of the magnetic field in H2S compressed to 153 gigapascals. A thin Sn-119 film placed inside the H2S sample was used as a sensor of the magnetic field. The magnetic field on the Sn-119 sensor was monitored by nuclear resonance scattering of synchrotron radiation. Our results demonstrate that an external static magnetic field of about 0.7 tesla is expelled from the volume of Sn-119 foil as a result of the shielding by the H2S sample at temperatures between 4.7 K and approximately 140 K, revealing a superconducting state of H2S.
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