Superconductivity in two-dimensional phosphorus carbide (β(o)-PC)

Wang, Bao-TianChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China;DINS, Dongguan 523808, Peoples R China (författare)

Two-dimensional (2D) boron has been predicted to show superconductivity. However, intrinsic 2D carbon and phosphorus have not been reported to be superconductors, which has inspired us to study the superconductivity of their mixture. Here we performed first-principles calculations for the electronic structure, phonon dispersion, and electron-phonon coupling of the metallic phosphorus carbide monolayer, beta(o)-PC. The results show that it is an intrinsic phonon-mediated superconductor, with an estimated superconducting temperature T-c of similar to 13 K. The main contribution to the electron-phonon coupling is from the out-of-plane vibrations of phosphorus. A Kohn anomaly on the first acoustic branch is observed. The superconducting related physical quantities are found to be tunable by applying strain or by carrier doping.

Liu, Peng-FeiChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China;DINS, Dongguan 523808, Peoples R China (författare)
Bo, TaoChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China;DINS, Dongguan 523808, Peoples R China (författare)
Yin, WenChinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China;DINS, Dongguan 523808, Peoples R China (författare)
Eriksson, Olle,1960-Uppsala universitet,Materialteori(Swepub:uu)olleerik (författare)
Zhao, JijunDalian Univ Technol, Minist Educ, Key Lab Mat Modicat Laser Ion & Elect Beams, Dalian 116024, Peoples R China (författare)
Wang, FangweiDINS, Dongguan 523808, Peoples R China;Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100080, Peoples R China (författare)
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China;DINS, Dongguan 523808, Peoples R ChinaMaterialteori (creator_code:org_t)

Ingår i:Physical Chemistry, Chemical Physics - PCCP: Royal Society of Chemistry (RSC)20:18, s. 12362-123671463-90761463-9084

Av författaren/redakt...: Wang, Bao-Tian; Liu, Peng-Fei; Bo, Tao; Yin, Wen; Eriksson, Olle, ...; Zhao, Jijun; visa fler...; Wang, Fangwei; visa färre...

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