Hernangomez-Perez, Daniel and Gunasekaran, Suman and Venkataraman, Latha and Evers, Ferdinand (2020) Solitonics with Polyacetylenes. NANO LETTERS, 20 (4). pp. 2615-2619. ISSN 1530-6984, 1530-6992
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Polyacetylene molecular wires have attracted a long-standing interest for the past 40 years. From a fundamental perspective, there are two main reasons for the interest. First, polyacetylenes are a prime realization of a one-dimensional topological insulator. Second, long molecules support freely propagating topological domain-wall states, so-called "solitons," which provide an early paradigm for spin-charge separation. Because of recent experimental developments, individual poly- acetylene chains can now be synthesized on substrates. Motivated by this breakthrough, we here propose a novel way for chemically supported soliton design in these systems. We demonstrate how to control the soliton position and how to read it out via external means. Also, we show how extra soliton-antisoliton pairs arise when applying a moderate static electric field. We thus make a step toward functionality of electronic devices based on soliton manipulation, that is, "solitonics".
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | POLARONS; polyacetylene; solitons; density functional theory; topology |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Ferdinand Evers |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Mar 2021 12:53 |
| Last Modified: | 26 Mar 2021 12:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/44756 |
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