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Observation of superconductivity in hydrogen sulfide from nuclear resonant scattering

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons101323

Troyan,  I. A.
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons186279

Drozdov,  A. P.
Biogeochemistry, Max Planck Institute for Chemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons100925

Eremets,  Mikhail
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

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Zitation

Troyan, I. A., Gavriliuk, A., Rueffer, R., Chumakov, A., Mironovich, A., Lyubutin, I., et al. (2016). Observation of superconductivity in hydrogen sulfide from nuclear resonant scattering. Science, 351(6279), 1303-1306. doi:10.1126/science.aac8176.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-002A-32DD-2
Zusammenfassung
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.