Odd non-linear conductivity under spatial inversion in chiral Tellurium
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arXiv
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866929568884981760 |
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| author | Suárez-Rodríguez, Manuel Martín-García, Beatriz Skowroński, Witold Calavalle, F. Tsirkin, Stepan S. Souza, Ivo De Juan, Fernando Chuvilin, Andrey Fert, Albert Gobbi, Marco Casanova, Fèlix Hueso, Luis E. |
| author_facet | Suárez-Rodríguez, Manuel Martín-García, Beatriz Skowroński, Witold Calavalle, F. Tsirkin, Stepan S. Souza, Ivo De Juan, Fernando Chuvilin, Andrey Fert, Albert Gobbi, Marco Casanova, Fèlix Hueso, Luis E. |
| contents | Electrical transport in non-centrosymmetric materials departs from the well-established phenomenological Ohm's law. Instead of a linear relation between current and electric field, a non-linear conductivity emerges along specific crystallographic directions. This non-linear transport is fundamentally related to the lack of spatial inversion symmetry. However, the experimental implications of an inversion symmetry operation on the non-linear conductivity remain to be explored. Here, we report on a large, non-linear conductivity in chiral Tellurium. By measuring samples with opposite handedness, we demonstrate that the non-linear transport is odd under spatial inversion. Furthermore, by applying an electrostatic gate, we modulate the non-linear output by a factor of 300, reaching the highest reported value excluding engineered heterostructures. Our results establish chiral Te as an ideal compound not just to study the fundamental interplay between crystal structure, symmetry operations and non-linear transport, but also to develop wireless rectifiers and energy-harvesting chiral devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_08267 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Odd non-linear conductivity under spatial inversion in chiral Tellurium Suárez-Rodríguez, Manuel Martín-García, Beatriz Skowroński, Witold Calavalle, F. Tsirkin, Stepan S. Souza, Ivo De Juan, Fernando Chuvilin, Andrey Fert, Albert Gobbi, Marco Casanova, Fèlix Hueso, Luis E. Mesoscale and Nanoscale Physics Electrical transport in non-centrosymmetric materials departs from the well-established phenomenological Ohm's law. Instead of a linear relation between current and electric field, a non-linear conductivity emerges along specific crystallographic directions. This non-linear transport is fundamentally related to the lack of spatial inversion symmetry. However, the experimental implications of an inversion symmetry operation on the non-linear conductivity remain to be explored. Here, we report on a large, non-linear conductivity in chiral Tellurium. By measuring samples with opposite handedness, we demonstrate that the non-linear transport is odd under spatial inversion. Furthermore, by applying an electrostatic gate, we modulate the non-linear output by a factor of 300, reaching the highest reported value excluding engineered heterostructures. Our results establish chiral Te as an ideal compound not just to study the fundamental interplay between crystal structure, symmetry operations and non-linear transport, but also to develop wireless rectifiers and energy-harvesting chiral devices. |
| title | Odd non-linear conductivity under spatial inversion in chiral Tellurium |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2311.08267 |