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Article: De-Dimerization Effect and Persistent Current in Mesoscopic Organic Polymer Rings
Title | De-Dimerization Effect and Persistent Current in Mesoscopic Organic Polymer Rings |
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Authors | |
Keywords | Dimerization Mesoscopic polymer ring Persistent current |
Issue Date | 1997 |
Publisher | Institute of Pure and Applied Physics. The Journal's web site is located at http://www.ipap.jp/jpsj/index.htm |
Citation | Journal of the Physical Society of Japan, 1997, v. 66 n. 8, p. 2419-2424 How to Cite? |
Abstract | In the framework of the Su-Shrieffer-Heeger (SSH) model, we investigate the effect of Aharonov-Bohm (AB) flux on the dimerization of mesoscopic organic polymer rings. It is shown that an applied AB flux in some flux windows is able to overcome the Peierls instability in mesoscopic organic polymer rings in the reasonably weak electron-phonon coupling regime. The coupling-strength and ring-size dependence of the window size in both half-filled and doped rings are exploited. The nature of the excitations away from half-filling is discussed in the weak coupling regime where there is a de-dimerization window as well as in the strong coupling regime where dimerization prevail at all values of the flux. The plausibility to observe the de-dimerization effect and the persistent current in polymer rings is also addressed. |
Persistent Identifier | http://hdl.handle.net/10722/80932 |
ISSN | 2023 Impact Factor: 1.5 2023 SCImago Journal Rankings: 0.612 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wang, Q | en_HK |
dc.contributor.author | Wang, ZD | en_HK |
dc.date.accessioned | 2010-09-06T08:11:53Z | - |
dc.date.available | 2010-09-06T08:11:53Z | - |
dc.date.issued | 1997 | en_HK |
dc.identifier.citation | Journal of the Physical Society of Japan, 1997, v. 66 n. 8, p. 2419-2424 | - |
dc.identifier.issn | 0031-9015 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/80932 | - |
dc.description.abstract | In the framework of the Su-Shrieffer-Heeger (SSH) model, we investigate the effect of Aharonov-Bohm (AB) flux on the dimerization of mesoscopic organic polymer rings. It is shown that an applied AB flux in some flux windows is able to overcome the Peierls instability in mesoscopic organic polymer rings in the reasonably weak electron-phonon coupling regime. The coupling-strength and ring-size dependence of the window size in both half-filled and doped rings are exploited. The nature of the excitations away from half-filling is discussed in the weak coupling regime where there is a de-dimerization window as well as in the strong coupling regime where dimerization prevail at all values of the flux. The plausibility to observe the de-dimerization effect and the persistent current in polymer rings is also addressed. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Institute of Pure and Applied Physics. The Journal's web site is located at http://www.ipap.jp/jpsj/index.htm | en_HK |
dc.relation.ispartof | Journal of the Physical Society of Japan | en_HK |
dc.subject | Dimerization | en_HK |
dc.subject | Mesoscopic polymer ring | en_HK |
dc.subject | Persistent current | en_HK |
dc.title | De-Dimerization Effect and Persistent Current in Mesoscopic Organic Polymer Rings | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9015&volume=66&spage=2419&epage=2424&date=1997&atitle=De-Dimerization+Effect+and+Persistent+Current+in+Mesoscopic+Organic+Polymer+Rings | en_HK |
dc.identifier.email | Wang, ZD: zwang@hkucc.hku.hk | en_HK |
dc.identifier.authority | Wang, ZD=rp00802 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1143/JPSJ.66.2419 | - |
dc.identifier.scopus | eid_2-s2.0-0031497018 | en_HK |
dc.identifier.hkuros | 28436 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0031497018&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 66 | en_HK |
dc.identifier.issue | 8 | en_HK |
dc.identifier.spage | 2419 | en_HK |
dc.identifier.epage | 2424 | en_HK |
dc.identifier.isi | WOS:A1997XU21800037 | - |
dc.publisher.place | Japan | en_HK |
dc.identifier.scopusauthorid | Wang, Q=7406916485 | en_HK |
dc.identifier.scopusauthorid | Wang, ZD=14828459100 | en_HK |
dc.identifier.issnl | 0031-9015 | - |