Phonon-mediated High-T Superconductivity in Hole-doped Diamond-like Crystalline Hydrocarbon

Overview

Journal Sci Rep

Specialty Science

Date 2017 May 5

PMID 28469256

Citations 2

Authors

Chao-Sheng Lian

Jian-Tao Wang

Wenhui Duan

Changfeng Chen

Affiliations

Soon will be listed here.

Abstract

We here predict by ab initio calculations phonon-mediated high-T superconductivity in hole-doped diamond-like cubic crystalline hydrocarbon K -CH (space group I2/3). This material possesses three key properties: (i) an all-sp 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.

Citing Articles

Superconductivity of boron-doped graphane under high pressure.

Cheng Y, Wang X, Zhang J, Yang K, Niu C, Zeng Z RSC Adv. 2022; 9(14):7680-7686.

PMID: 35521158 PMC: 9061170. DOI: 10.1039/c8ra10241d.

Unusual sulfur isotope effect and extremely high critical temperature in HS superconductor.

Szczesniak R, Durajski A Sci Rep. 2018; 8(1):6037.

PMID: 29662115 PMC: 5902562. DOI: 10.1038/s41598-018-24442-8.

References

Blase X, Bustarret E, Chapelier C, Klein T, Marcenat C . Superconducting group-IV semiconductors. Nat Mater. 2009; 8(5):375-82. DOI: 10.1038/nmat2425. View

Boeri L, Kortus J, Andersen O . Three-dimensional MgB2-type superconductivity in hole-doped diamond. Phys Rev Lett. 2004; 93(23):237002. DOI: 10.1103/PhysRevLett.93.237002. View

Duan D, Liu Y, Tian F, Li D, Huang X, Zhao Z . Pressure-induced metallization of dense (H₂S)₂H₂ with high-Tc superconductivity. Sci Rep. 2014; 4:6968. PMC: 4225546. DOI: 10.1038/srep06968. View

Perdew , Burke , Ernzerhof . Generalized Gradient Approximation Made Simple. Phys Rev Lett. 1996; 77(18):3865-3868. DOI: 10.1103/PhysRevLett.77.3865. View

Methfessel , Paxton . High-precision sampling for Brillouin-zone integration in metals. Phys Rev B Condens Matter. 1989; 40(6):3616-3621. DOI: 10.1103/physrevb.40.3616. View

Ekimov E, Sidorov V, Bauer E, Melnik N, Curro N, Thompson J . Superconductivity in diamond. Nature. 2004; 428(6982):542-5. DOI: 10.1038/nature02449. View

Itoh M, Kotani M, Naito H, Sunada T, Kawazoe Y, Adschiri T . New metallic carbon crystal. Phys Rev Lett. 2009; 102(5):055703. DOI: 10.1103/PhysRevLett.102.055703. View

Giannozzi P, Baroni S, Bonini N, Calandra M, Car R, Cavazzoni C . QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials. J Phys Condens Matter. 2011; 21(39):395502. DOI: 10.1088/0953-8984/21/39/395502. View

Mitsuhashi R, Suzuki Y, Yamanari Y, Mitamura H, Kambe T, Ikeda N . Superconductivity in alkali-metal-doped picene. Nature. 2010; 464(7285):76-9. DOI: 10.1038/nature08859. View

10.

Calandra M, Mauri F . Theoretical explanation of superconductivity in C6Ca. Phys Rev Lett. 2005; 95(23):237002. DOI: 10.1103/PhysRevLett.95.237002. View

11.

Troullier , Martins . Efficient pseudopotentials for plane-wave calculations. Phys Rev B Condens Matter. 1991; 43(3):1993-2006. DOI: 10.1103/physrevb.43.1993. View

12.

Emery N, Herold C, dAstuto M, Garcia V, Bellin C, Mareche J . Superconductivity of bulk CaC6. Phys Rev Lett. 2005; 95(8):087003. DOI: 10.1103/PhysRevLett.95.087003. View

13.

Ishizaka K, Eguchi R, Tsuda S, Chainani A, Yokoya T, Kiss T . Temperature-dependent localized excitations of doped carriers in superconducting diamond. Phys Rev Lett. 2008; 100(16):166402. DOI: 10.1103/PhysRevLett.100.166402. View

14.

Kubozono Y, Mitamura H, Lee X, He X, Yamanari Y, Takahashi Y . Metal-intercalated aromatic hydrocarbons: a new class of carbon-based superconductors. Phys Chem Chem Phys. 2011; 13(37):16476-93. DOI: 10.1039/c1cp20961b. View

15.

Drozdov A, Eremets M, Troyan I, Ksenofontov V, Shylin S . Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system. Nature. 2015; 525(7567):73-6. DOI: 10.1038/nature14964. View

16.

Nagamatsu J, Nakagawa N, Muranaka T, Zenitani Y, Akimitsu J . Superconductivity at 39 K in magnesium diboride. Nature. 2001; 410(6824):63-4. DOI: 10.1038/35065039. View

17.

Savini G, Ferrari A, Giustino F . First-principles prediction of doped graphane as a high-temperature electron-phonon superconductor. Phys Rev Lett. 2010; 105(3):037002. DOI: 10.1103/PhysRevLett.105.037002. View

18.

Crespi V . Superconductors: Clathrates join the covalent club. Nat Mater. 2003; 2(10):650-1. DOI: 10.1038/nmat990. View

19.

Lian C, Wang X, Wang J . Hydrogenated K4 carbon: a new stable cubic gauche structure of carbon hydride. J Chem Phys. 2013; 138(2):024702. DOI: 10.1063/1.4773584. View