Bebikhov, Yuri V. ; Dmitriev, Sergey V. ; Suchkov, Sergey V. ; Khare, Avinash. (2010) Effect of damping on kink ratchets in the Klein-Gordon lattice free of the Peierls-Nabarro potential Physics Letters A, 374 (13-14). pp. 1477-1480. ISSN 0375-9601
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S03759...
Related URL: http://dx.doi.org/10.1016/j.physleta.2010.01.044
Abstract
Ratchet of kink under harmonic ac driving force in the discrete Klein-Gordon model with asymmetric potential and with a damping term is investigated numerically. A particular feature of the considered discrete model is that supported kinks are free of the Peierls-Nabarro potential (PNp). It is demonstrated that, depending on the strength of damping, the drift velocity of the kink can be positive (weak damping) or negative (strong damping). The absence of PNp results in a weak dependence of kink drift velocity on the discreteness parameter.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 17725 |
| Deposited On: | 16 Nov 2010 12:47 |
| Last Modified: | 04 Jun 2011 06:13 |
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