title: Observation of superconductivity in hydrogen sulfide from nuclear resonant scattering.
abstract: 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 (119)Sn film placed inside the H2S sample was used as a sensor of the magnetic field. The magnetic field on the (119)Sn 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 (119)Sn 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.
authors.affiliation: Max-Planck-Institut für Chemie, 55020 Mainz, Germany. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow 119333, Russia. itrojan64@gmail.com.
authors.forename: Ivan
authors.initials: I
authors.lastname: Troyan
authors.affiliation: Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow 119333, Russia. Institute for Nuclear Research, Russian Academy of Sciences, Troitsk, Moscow 142190, Russia.
authors.forename: Alexander
authors.initials: A
authors.lastname: Gavriliuk
authors.affiliation: European Synchrotron Radiation Facility, CS40220, F-38043 Grenoble Cedex 9, France.
authors.forename: Rudolf
authors.initials: R
authors.lastname: Rüffer
authors.affiliation: European Synchrotron Radiation Facility, CS40220, F-38043 Grenoble Cedex 9, France. National Research Center "Kurchatov Institute," 123182 Moscow, Russia.
authors.forename: Alexander
authors.initials: A
authors.lastname: Chumakov
authors.affiliation: Institute for Nuclear Research, Russian Academy of Sciences, Troitsk, Moscow 142190, Russia.
authors.forename: Anna
authors.initials: A
authors.lastname: Mironovich
authors.affiliation: Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow 119333, Russia.
authors.forename: Igor
authors.initials: I
authors.lastname: Lyubutin
authors.affiliation: A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119991, Russia.
authors.forename: Dmitry
authors.initials: D
authors.lastname: Perekalin
authors.affiliation: A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119991, Russia.
authors.forename: Alexander P
authors.initials: AP
authors.lastname: Drozdov
authors.affiliation: A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow 119991, Russia.
authors.forename: Mikhail I
authors.initials: MI
authors.lastname: Eremets