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- Publisher Website: 10.1103/PhysRevB.48.13959
- Scopus: eid_2-s2.0-0041504033
- WOS: WOS:A1993MF90300086
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Article: Electron-phonon interactions and superconductivity in K3C60
Title | Electron-phonon interactions and superconductivity in K3C60 |
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Authors | |
Issue Date | 1993 |
Publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ |
Citation | Physical Review B (Condensed Matter), 1993, v. 48 n. 18, p. 13959-13970 How to Cite? |
Abstract | Using electronic states and phonon states from first-principles calculations on K3C60 to evaluate the quantities in the McMillan equation, we examine the effects of both electron-phonon dynamic charge coupling (Q) and Jahn-Teller coupling (JT) on various superconducting properties, including Tc, ΔTc (the shift of Tc for 1 GPa pressure), αC (the isotope exponent for →1312C), and αK (the isotope exponent for →4139K). All quantities including electron-phonon coupling are evaluated (without modification) directly from theory, except for the screening length between conducting electrons and ions, Rsc. With Rsc=0.8-1.0, we find that the calculated properties, Tc, ΔTc, and αC, are all in good agreement with experimental measurements. We find that the superconducting properties depend critically upon the synergy between Q and JT coupling. © 1993 The American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/167817 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chen, G | en_US |
dc.contributor.author | Guo, Y | en_US |
dc.contributor.author | Karasawa, N | en_US |
dc.contributor.author | Goddard Iii, WA | en_US |
dc.date.accessioned | 2012-10-08T03:11:57Z | - |
dc.date.available | 2012-10-08T03:11:57Z | - |
dc.date.issued | 1993 | en_US |
dc.identifier.citation | Physical Review B (Condensed Matter), 1993, v. 48 n. 18, p. 13959-13970 | - |
dc.identifier.issn | 0163-1829 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/167817 | - |
dc.description.abstract | Using electronic states and phonon states from first-principles calculations on K3C60 to evaluate the quantities in the McMillan equation, we examine the effects of both electron-phonon dynamic charge coupling (Q) and Jahn-Teller coupling (JT) on various superconducting properties, including Tc, ΔTc (the shift of Tc for 1 GPa pressure), αC (the isotope exponent for →1312C), and αK (the isotope exponent for →4139K). All quantities including electron-phonon coupling are evaluated (without modification) directly from theory, except for the screening length between conducting electrons and ions, Rsc. With Rsc=0.8-1.0, we find that the calculated properties, Tc, ΔTc, and αC, are all in good agreement with experimental measurements. We find that the superconducting properties depend critically upon the synergy between Q and JT coupling. © 1993 The American Physical Society. | en_US |
dc.language | eng | en_US |
dc.publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | en_US |
dc.relation.ispartof | Physical Review B (Condensed Matter) | - |
dc.title | Electron-phonon interactions and superconductivity in K3C60 | en_US |
dc.type | Article | en_US |
dc.identifier.email | Chen, G:ghc@yangtze.hku.hk | en_US |
dc.identifier.authority | Chen, G=rp00671 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1103/PhysRevB.48.13959 | en_US |
dc.identifier.scopus | eid_2-s2.0-0041504033 | en_US |
dc.identifier.volume | 48 | en_US |
dc.identifier.issue | 18 | en_US |
dc.identifier.spage | 13959 | en_US |
dc.identifier.epage | 13970 | en_US |
dc.identifier.isi | WOS:A1993MF90300086 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Chen, G=35253368600 | en_US |
dc.identifier.scopusauthorid | Guo, Y=7406310425 | en_US |
dc.identifier.scopusauthorid | Karasawa, N=7005757832 | en_US |
dc.identifier.scopusauthorid | Goddard III, WA=36042196400 | en_US |
dc.identifier.issnl | 0163-1829 | - |