Superconductivity in highly disordered dense carbon disulfide

Ranga P Dias; Choong-Shik Yoo; Viktor V Struzhkin; Minseob Kim; Takaki Muramatsu; Takahiro Matsuoka; Yasuo Ohishi; Stanislav Sinogeikin

doi:10.1073/pnas.1305129110

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Superconductivity in highly disordered dense carbon disulfide

Journal article

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Superconductivity in highly disordered dense carbon disulfide

Ranga P Dias, Choong-Shik Yoo, Viktor V Struzhkin, Minseob Kim, Takaki Muramatsu, Takahiro Matsuoka, Yasuo Ohishi and Stanislav Sinogeikin

Proceedings of the National Academy of Sciences - PNAS, Vol.110(29), pp.11720-11724

07/16/2013

DOI: https://doi.org/10.1073/pnas.1305129110

Handle:

https://hdl.handle.net/2376/107040

PMCID: PMC3718174

PMID: 23818624

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Abstract

magnetic ordering

Physical Sciences

metallization

nonconventional superconductors

extended solids

non-Fermi liquids

High pressure plays an increasingly important role in both understanding superconductivity and the development of new superconducting materials. New superconductors were found in metallic and metal oxide systems at high pressure. However, because of the filled close-shell configuration, the superconductivity in molecular systems has been limited to charge-transferred salts and metal-doped carbon species with relatively low superconducting transition temperatures. Here, we report the low-temperature superconducting phase observed in diamagnetic carbon disulfide under high pressure. The superconductivity arises from a highly disordered extended state ( CS4 phase or phase III[ CS4 ]) at ∼6.2 K over a broad pressure range from 50 to 172 GPa. Based on the X-ray scattering data, we suggest that the local structural change from a tetrahedral to an octahedral configuration is responsible for the observed superconductivity.

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Title: Superconductivity in highly disordered dense carbon disulfide
Creators: Ranga P Dias - Departments of Physics and Chemistry, Institute for Shock Physics
Choong-Shik Yoo - Departments of Physics and Chemistry, Institute for Shock Physics
Viktor V Struzhkin - Geophysical Laboratory
Minseob Kim - Departments of Physics and Chemistry, Institute for Shock Physics
Takaki Muramatsu - Geophysical Laboratory
Takahiro Matsuoka - , Sayo, Hyogo 679-5198
Yasuo Ohishi - , Sayo, Hyogo 679-5198
Stanislav Sinogeikin - High Pressure Collaborative Access Team, Geophysical Laboratory
Publication Details: Proceedings of the National Academy of Sciences - PNAS, Vol.110(29), pp.11720-11724
Academic Unit: Institute for Shock Physics
Publisher: National Academy of Sciences
Identifiers: 99900546892901842
Language: English
Resource Type: Journal article