Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors

We have investigated correlated electronic structures and the phase diagram of electron-doped hydrocarbon molecular solids, based on the dynamical mean-field theory. We have found that the ground state of hydrocarbon-based superconductors such as electron-doped picene and coronene is a multi-band Fe...

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Main Authors: Minjae Kim, Hong Chul Choi, Ji Hoon Shim, B I Min
Format: Article
Language:English
Published: IOP Publishing 2013-01-01
Series:New Journal of Physics
Online Access:https://doi.org/10.1088/1367-2630/15/11/113030
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author Minjae Kim
Hong Chul Choi
Ji Hoon Shim
B I Min
author_facet Minjae Kim
Hong Chul Choi
Ji Hoon Shim
B I Min
author_sort Minjae Kim
collection DOAJ
description We have investigated correlated electronic structures and the phase diagram of electron-doped hydrocarbon molecular solids, based on the dynamical mean-field theory. We have found that the ground state of hydrocarbon-based superconductors such as electron-doped picene and coronene is a multi-band Fermi liquid, while that of non-superconducting electron-doped pentacene is a single-band Fermi liquid in the proximity of the metal–insulator transition. The size of the molecular orbital energy level splitting plays a key role in producing the superconductivity of electron-doped hydrocarbon solids. The multi-band nature of hydrocarbon solids would boost the superconductivity through the enhanced density of states at the Fermi level.
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spelling doaj.art-c72483942fec46a39e7410f47595e9842023-08-08T11:04:48ZengIOP PublishingNew Journal of Physics1367-26302013-01-01151111303010.1088/1367-2630/15/11/113030Correlated electronic structures and the phase diagram of hydrocarbon-based superconductorsMinjae Kim0Hong Chul Choi1Ji Hoon Shim2B I Min3Department of Physics, PCTP, Pohang University of Science and Technology , Pohang 790-784, KoreaDepartment of Chemistry, Pohang University of Science and Technology , Pohang 790-784, KoreaDepartment of Chemistry, Pohang University of Science and Technology , Pohang 790-784, Korea; Division of Advanced Nuclear Engineering, Pohang University of Science and Technology , Pohang 790-784, KoreaDepartment of Physics, PCTP, Pohang University of Science and Technology , Pohang 790-784, KoreaWe have investigated correlated electronic structures and the phase diagram of electron-doped hydrocarbon molecular solids, based on the dynamical mean-field theory. We have found that the ground state of hydrocarbon-based superconductors such as electron-doped picene and coronene is a multi-band Fermi liquid, while that of non-superconducting electron-doped pentacene is a single-band Fermi liquid in the proximity of the metal–insulator transition. The size of the molecular orbital energy level splitting plays a key role in producing the superconductivity of electron-doped hydrocarbon solids. The multi-band nature of hydrocarbon solids would boost the superconductivity through the enhanced density of states at the Fermi level.https://doi.org/10.1088/1367-2630/15/11/113030
spellingShingle Minjae Kim
Hong Chul Choi
Ji Hoon Shim
B I Min
Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors
New Journal of Physics
title Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors
title_full Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors
title_fullStr Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors
title_full_unstemmed Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors
title_short Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors
title_sort correlated electronic structures and the phase diagram of hydrocarbon based superconductors
url https://doi.org/10.1088/1367-2630/15/11/113030
work_keys_str_mv AT minjaekim correlatedelectronicstructuresandthephasediagramofhydrocarbonbasedsuperconductors
AT hongchulchoi correlatedelectronicstructuresandthephasediagramofhydrocarbonbasedsuperconductors
AT jihoonshim correlatedelectronicstructuresandthephasediagramofhydrocarbonbasedsuperconductors
AT bimin correlatedelectronicstructuresandthephasediagramofhydrocarbonbasedsuperconductors