Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon

Abstract We here predict by ab initio calculations phonon-mediated high-T c superconductivity in hole-doped diamond-like cubic crystalline hydrocarbon K 4-CH (space group I21/3). This material possesses three key properties: (i) an all-sp 3 covalent carbon framework that produces high-frequency phon...

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Autores principales:	Chao-Sheng Lian, Jian-Tao Wang, Wenhui Duan, Changfeng Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7f19d4914ae142d9aab91cd00a531c8a
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spelling	oai:doaj.org-article:7f19d4914ae142d9aab91cd00a531c8a2021-12-02T16:08:00ZPhonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon10.1038/s41598-017-01541-62045-2322https://doaj.org/article/7f19d4914ae142d9aab91cd00a531c8a2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01541-6https://doaj.org/toc/2045-2322Abstract We here predict by ab initio calculations phonon-mediated high-T c superconductivity in hole-doped diamond-like cubic crystalline hydrocarbon K 4-CH (space group I21/3). This material possesses three key properties: (i) an all-sp 3 covalent carbon framework that produces high-frequency phonon modes, (ii) a steep-rising electronic density of states near the top of the valence band, and (iii) a Fermi level that lies in the σ-band, allowing for a strong coupling with the C-C bond-stretching modes. The simultaneous presence of these properties generates remarkably high superconducting transition temperatures above 80 K at an experimentally accessible hole doping level of only a few percent. These results identify a new extraordinary electron-phonon superconductor and pave the way for further exploration of this novel superconducting covalent metal.Chao-Sheng LianJian-Tao WangWenhui DuanChangfeng ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chao-Sheng Lian Jian-Tao Wang Wenhui Duan Changfeng Chen Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon
description	Abstract We here predict by ab initio calculations phonon-mediated high-T c superconductivity in hole-doped diamond-like cubic crystalline hydrocarbon K 4-CH (space group I21/3). This material possesses three key properties: (i) an all-sp 3 covalent carbon framework that produces high-frequency phonon modes, (ii) a steep-rising electronic density of states near the top of the valence band, and (iii) a Fermi level that lies in the σ-band, allowing for a strong coupling with the C-C bond-stretching modes. The simultaneous presence of these properties generates remarkably high superconducting transition temperatures above 80 K at an experimentally accessible hole doping level of only a few percent. These results identify a new extraordinary electron-phonon superconductor and pave the way for further exploration of this novel superconducting covalent metal.
format	article
author	Chao-Sheng Lian Jian-Tao Wang Wenhui Duan Changfeng Chen
author_facet	Chao-Sheng Lian Jian-Tao Wang Wenhui Duan Changfeng Chen
author_sort	Chao-Sheng Lian
title	Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon
title_short	Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon
title_full	Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon
title_fullStr	Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon
title_full_unstemmed	Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon
title_sort	phonon-mediated high-t c superconductivity in hole-doped diamond-like crystalline hydrocarbon
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7f19d4914ae142d9aab91cd00a531c8a
work_keys_str_mv	AT chaoshenglian phononmediatedhightcsuperconductivityinholedopeddiamondlikecrystallinehydrocarbon AT jiantaowang phononmediatedhightcsuperconductivityinholedopeddiamondlikecrystallinehydrocarbon AT wenhuiduan phononmediatedhightcsuperconductivityinholedopeddiamondlikecrystallinehydrocarbon AT changfengchen phononmediatedhightcsuperconductivityinholedopeddiamondlikecrystallinehydrocarbon
_version_	1718384666174554112

Phonon-mediated high-T c superconductivity in hole-doped diamond-like crystalline hydrocarbon

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