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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 ISSN 1098-0121.

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Official URL: https://doi.org/10.1103/PhysRevB.100.161108

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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
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > 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:
DateEvent
15 October 2019Published
22 October 2019Available
9 October 2019Accepted
Volume: 100
Number: 16
Article Number: 161108(R)
DOI: 10.1103/PhysRevB.100.161108
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): © 2019 American Physical Society
Access rights to Published version: Restricted or Subscription Access
Description:

Physical Review B: Rapid Communications

Date of first compliant deposit: 11 October 2019
Date of first compliant Open Access: 21 October 2019
Funder: UKIERI
Grant number: UKIERI 2016-17-004
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
F. 184-14/2017(IC)UK-India Education and Research Initiativehttp://dx.doi.org/10.13039/501100000732
2016-17-004UK-India Education and Research Initiativehttp://dx.doi.org/10.13039/501100000732
Research grant FRPDPresidency University, Kolkatahttp://viaf.org/viaf/313299839
IAS residential fellowshipUniversity of Warwickhttp://dx.doi.org/10.13039/501100000741
INSPIRE fellowship IF160437India.‏ ‎Department of Science and Technologyhttp://viaf.org/viaf/139476328
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