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Spin-selective Aharonov-Casher caging in a topological quantum network
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Mukherjee, Amrita, Roemer, Rudolf A. and Chakrabarti, Arunava (2019) Spin-selective Aharonov-Casher caging in a topological quantum network. Physical Review B (Condensed Matter and Materials Physics), 100 (16). 161108(R). doi:10.1103/PhysRevB.100.161108
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Official URL: https://doi.org/10.1103/PhysRevB.100.161108
Abstract
A periodic network of connected rhombi, mimicking a spintronic device, is shown to exhibit an intriguing spin-selective extreme localization, when submerged in a uniform out-of plane electric field. The topological Aharonov-Casher phase acquired by a travelling spin is seen to induce a complete caging, triggered at a special strength of the spin-orbit coupling, for half-odd integer spins s ≥ n~/2, with n odd, sparing the integer spins. The observation finds exciting experimental parallels in recent literature on caged, extreme localized modes in analogous photonic lattices. Our results are exact.
| Item Type: | Journal Article | ||||||||||||||||||
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| Subjects: | Q Science > QC Physics | ||||||||||||||||||
| Divisions: | Faculty of Science > Physics | ||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Quantum theory, Condensed matter | ||||||||||||||||||
| Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | ||||||||||||||||||
| Publisher: | American Physical Society | ||||||||||||||||||
| ISSN: | 1098-0121 | ||||||||||||||||||
| Official Date: | 15 October 2019 | ||||||||||||||||||
| Dates: |
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| Volume: | 100 | ||||||||||||||||||
| Number: | 16 | ||||||||||||||||||
| Article Number: | 161108(R) | ||||||||||||||||||
| DOI: | 10.1103/PhysRevB.100.161108 | ||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||
| Publisher Statement: | © 2019 American Physical Society | ||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
| Description: | Physical Review B: Rapid Communications |
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| Funder: | UKIERI | ||||||||||||||||||
| Grant number: | UKIERI 2016-17-004 | ||||||||||||||||||
| RIOXX Funder/Project Grant: |
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