Strain modulation effects on the topological properties of a chiral p-wave superconductor
We present a study of strain modulation effects on electronic structures of a two-dimensional single-band chiral p-wave superconductor within the BCS mean-field scheme. We employ a lattice model and solve the Bogolyubov-de Gennes equations numerically. Implementing strain modulations through spatial...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.043044 |
| _version_ | 1797210635802509312 |
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| author | Yuto Shibata Manfred Sigrist |
| author_facet | Yuto Shibata Manfred Sigrist |
| author_sort | Yuto Shibata |
| collection | DOAJ |
| description | We present a study of strain modulation effects on electronic structures of a two-dimensional single-band chiral p-wave superconductor within the BCS mean-field scheme. We employ a lattice model and solve the Bogolyubov-de Gennes equations numerically. Implementing strain modulations through spatially varying hopping matrix elements, we observe the appearance of spontaneous supercurrents from the resulting spatial modulation of order parameter amplitudes. Moreover, sufficiently strong strain modulation induces the formation of topologically distinct domains within the system and causes the appearance of chiral edge modes, which is captured by spectral functions and local Chern markers. |
| first_indexed | 2024-04-24T10:13:44Z |
| format | Article |
| id | doaj.art-3fa694bb3241489989679031e679947a |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:13:44Z |
| publishDate | 2022-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-3fa694bb3241489989679031e679947a2024-04-12T17:25:26ZengAmerican Physical SocietyPhysical Review Research2643-15642022-10-014404304410.1103/PhysRevResearch.4.043044Strain modulation effects on the topological properties of a chiral p-wave superconductorYuto ShibataManfred SigristWe present a study of strain modulation effects on electronic structures of a two-dimensional single-band chiral p-wave superconductor within the BCS mean-field scheme. We employ a lattice model and solve the Bogolyubov-de Gennes equations numerically. Implementing strain modulations through spatially varying hopping matrix elements, we observe the appearance of spontaneous supercurrents from the resulting spatial modulation of order parameter amplitudes. Moreover, sufficiently strong strain modulation induces the formation of topologically distinct domains within the system and causes the appearance of chiral edge modes, which is captured by spectral functions and local Chern markers.http://doi.org/10.1103/PhysRevResearch.4.043044 |
| spellingShingle | Yuto Shibata Manfred Sigrist Strain modulation effects on the topological properties of a chiral p-wave superconductor Physical Review Research |
| title | Strain modulation effects on the topological properties of a chiral p-wave superconductor |
| title_full | Strain modulation effects on the topological properties of a chiral p-wave superconductor |
| title_fullStr | Strain modulation effects on the topological properties of a chiral p-wave superconductor |
| title_full_unstemmed | Strain modulation effects on the topological properties of a chiral p-wave superconductor |
| title_short | Strain modulation effects on the topological properties of a chiral p-wave superconductor |
| title_sort | strain modulation effects on the topological properties of a chiral p wave superconductor |
| url | http://doi.org/10.1103/PhysRevResearch.4.043044 |
| work_keys_str_mv | AT yutoshibata strainmodulationeffectsonthetopologicalpropertiesofachiralpwavesuperconductor AT manfredsigrist strainmodulationeffectsonthetopologicalpropertiesofachiralpwavesuperconductor |