This title appears in the Scientific Report :
2022
Please use the identifier:
http://dx.doi.org/10.1140/epjp/s13360-022-02975-2 in citations.
Please use the identifier: http://hdl.handle.net/2128/32458 in citations.
Higher-order topological matter and fractional chiral states
Higher-order topological matter and fractional chiral states
We develop a chiral anomalous fermion hamiltonian proposal to study the higher-order topological (HOT) phase with chiral symmetry C fractionalized like CxCyCz. First, we solve the C-chiral symmetry constraint for eight band models and describe those induced by the partial Ci’s. Then, we determine th...
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Personal Name(s): | Drissi, Lalla Btissam (Corresponding author) |
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Lounis, Samir / Saidi, E. H. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 JARA - HPC; JARA-HPC JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | The European physical journal / Plus, 137 (2022) 7, S. 796 |
Imprint: |
Heidelberg
Springer
2022
|
DOI: |
10.1140/epjp/s13360-022-02975-2 |
Document Type: |
Journal Article |
Research Program: |
Topological Matter |
Link: |
OpenAccess Restricted |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/32458 in citations.
We develop a chiral anomalous fermion hamiltonian proposal to study the higher-order topological (HOT) phase with chiral symmetry C fractionalized like CxCyCz. First, we solve the C-chiral symmetry constraint for eight band models and describe those induced by the partial Ci’s. Then, we determine the explicit expression of fractional states characterising HOT matter and comment on the relationships amongst them and with the standard Altland–Zirnbauer gapless modes. We also give characteristic properties of the gapless fractional states and compute their contribution to the topological index of the chiral model. The findings of this work are shown to be crucial for investigating and handling high order topological phase. |