Clean-limit superconductivity in Im3¯m H3S synthesized from sulfur and hydrogen donor ammonia borane

Israel Osmond; Owen Moulding; Sam Cross; Takaki Muramatsu; Annabelle Brooks; Oliver Lord; Timofey Fedotenko; Jonathan Buhot; Sven Friedemann

doi:10.1103/PhysRevB.105.L220502

Clean-limit superconductivity in Im3¯m H3S synthesized from sulfur and hydrogen donor ammonia borane

Israel Osmond, Owen Moulding, Sam Cross, Takaki Muramatsu, Annabelle Brooks, Oliver Lord, Timofey Fedotenko, Jonathan Buhot, Sven Friedemann

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Abstract

We present detailed studies of the superconductivity in high-pressure . X-ray diffraction measurements show that cubic was synthesized from elemental sulfur and hydrogen donor ammonia borane (). Our electrical transport measurements confirm superconductivity with a transition temperature at . From the analysis of both the normal-state resistivity and the slope of the critical field, we conclude that the superconductivity is described by clean-limit behavior. A significant broadening of the resistive transition in finite magnetic field is found, as expected for superconductors. We identify a linear temperature-over-field scaling of the resistance at the superconducting transition which is not described by existing theories.

Original language	English
Article number	L220502
Journal	Physical Review B
Volume	105
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.105.L220502
Publication status	Published - 6 Jun 2022

Bibliographical note

Funding Information:
The authors thank Antony Carrington for valuable discussions. This work was partially supported by the EPSRC under Grants No. EP/V048759/1 and No. EP/L015544/1, as well as the ERC Horizon 2020 programme under Grant No. 715262-HPSuper. O.L. acknowledges support from the Royal Society in the form of a University Research Fellowship (UF150057). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at PETRA III and we thank Hanns-Peter Liermann for assistance in using P02.2. Beamtime was allocated for Proposal No. I-20210376 EC.

Publisher Copyright:
© 2022 American Physical Society.

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https://arxiv.org/abs/2209.13299

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Cite this

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title = "Clean-limit superconductivity in Im3¯m H3S synthesized from sulfur and hydrogen donor ammonia borane",

abstract = "We present detailed studies of the superconductivity in high-pressure . X-ray diffraction measurements show that cubic was synthesized from elemental sulfur and hydrogen donor ammonia borane (). Our electrical transport measurements confirm superconductivity with a transition temperature at . From the analysis of both the normal-state resistivity and the slope of the critical field, we conclude that the superconductivity is described by clean-limit behavior. A significant broadening of the resistive transition in finite magnetic field is found, as expected for superconductors. We identify a linear temperature-over-field scaling of the resistance at the superconducting transition which is not described by existing theories.",

author = "Israel Osmond and Owen Moulding and Sam Cross and Takaki Muramatsu and Annabelle Brooks and Oliver Lord and Timofey Fedotenko and Jonathan Buhot and Sven Friedemann",

note = "Funding Information: The authors thank Antony Carrington for valuable discussions. This work was partially supported by the EPSRC under Grants No. EP/V048759/1 and No. EP/L015544/1, as well as the ERC Horizon 2020 programme under Grant No. 715262-HPSuper. O.L. acknowledges support from the Royal Society in the form of a University Research Fellowship (UF150057). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at PETRA III and we thank Hanns-Peter Liermann for assistance in using P02.2. Beamtime was allocated for Proposal No. I-20210376 EC. Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

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T1 - Clean-limit superconductivity in Im3¯m H3S synthesized from sulfur and hydrogen donor ammonia borane

AU - Osmond, Israel

AU - Moulding, Owen

AU - Cross, Sam

AU - Muramatsu, Takaki

AU - Brooks, Annabelle

AU - Lord, Oliver

AU - Fedotenko, Timofey

AU - Buhot, Jonathan

AU - Friedemann, Sven

N1 - Funding Information: The authors thank Antony Carrington for valuable discussions. This work was partially supported by the EPSRC under Grants No. EP/V048759/1 and No. EP/L015544/1, as well as the ERC Horizon 2020 programme under Grant No. 715262-HPSuper. O.L. acknowledges support from the Royal Society in the form of a University Research Fellowship (UF150057). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at PETRA III and we thank Hanns-Peter Liermann for assistance in using P02.2. Beamtime was allocated for Proposal No. I-20210376 EC. Publisher Copyright: © 2022 American Physical Society.

PY - 2022/6/6

Y1 - 2022/6/6

N2 - We present detailed studies of the superconductivity in high-pressure . X-ray diffraction measurements show that cubic was synthesized from elemental sulfur and hydrogen donor ammonia borane (). Our electrical transport measurements confirm superconductivity with a transition temperature at . From the analysis of both the normal-state resistivity and the slope of the critical field, we conclude that the superconductivity is described by clean-limit behavior. A significant broadening of the resistive transition in finite magnetic field is found, as expected for superconductors. We identify a linear temperature-over-field scaling of the resistance at the superconducting transition which is not described by existing theories.

AB - We present detailed studies of the superconductivity in high-pressure . X-ray diffraction measurements show that cubic was synthesized from elemental sulfur and hydrogen donor ammonia borane (). Our electrical transport measurements confirm superconductivity with a transition temperature at . From the analysis of both the normal-state resistivity and the slope of the critical field, we conclude that the superconductivity is described by clean-limit behavior. A significant broadening of the resistive transition in finite magnetic field is found, as expected for superconductors. We identify a linear temperature-over-field scaling of the resistance at the superconducting transition which is not described by existing theories.

UR - https://doi.org/10.1103/PhysRevB.105.L220502

U2 - 10.1103/PhysRevB.105.L220502

DO - 10.1103/PhysRevB.105.L220502

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