Helical Quantum Edge Gears in 2D Topological Insulators
| dc.citation.firstpage | 186404 | en_US |
| dc.citation.issueNumber | 18 | en_US |
| dc.citation.journalTitle | Physical Review Letters | en_US |
| dc.citation.volumeNumber | 115 | en_US |
| dc.contributor.author | Chou, Yang-Zhi | en_US |
| dc.contributor.author | Levchenko, Alex | en_US |
| dc.contributor.author | Foster, Matthew S. | en_US |
| dc.contributor.org | Rice Center for Quantum Materials | en_US |
| dc.date.accessioned | 2016-06-10T18:07:39Z | |
| dc.date.available | 2016-06-10T18:07:39Z | |
| dc.date.issued | 2015 | en_US |
| dc.description.abstract | We show that two-terminal transport can measure the Luttinger liquid (LL) parameter K, in helical LLs at the edges of two-dimensional topological insulators (TIs) with Rashba spin-orbit coupling. We consider a Coulomb drag geometry with two coplanar TIs and short-ranged spin-flip interedge scattering. Current injected into one edge loop induces circulation in the second, which floats without leads. In the low-temperature (T→0) perfect drag regime, the conductance is (e2/h)(2K+1)/(K+1). At higher T, we predict a conductivity ∼T−4K+3. The conductivity for a single edge is also computed. | en_US |
| dc.identifier.citation | Chou, Yang-Zhi, Levchenko, Alex and Foster, Matthew S.. "Helical Quantum Edge Gears in 2D Topological Insulators." <i>Physical Review Letters,</i> 115, no. 18 (2015) American Physical Society: 186404. http://dx.doi.org/10.1103/PhysRevLett.115.186404. | |
| dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevLett.115.186404 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/90486 | |
| dc.language.iso | eng | en_US |
| dc.publisher | American Physical Society | |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | |
| dc.title | Helical Quantum Edge Gears in 2D Topological Insulators | en_US |
| dc.type | Journal article | en_US |
| dc.type.dcmi | Text | en_US |
| dc.type.publication | publisher version | en_US |
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