Room temperature Planar Hall effect in nanostructures of trigonal-PtBi2
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866914110110695424 |
|---|---|
| author | Veyrat, Arthur Koepernik, Klaus Veyrat, Louis Shipunov, Grigory Kovalchuk, Iryna Aswartham, Saicharan Qu, Jiang Kumar, Ankit Ceccardi, Michele Caglieris, Federico Rodríguez, Nicolás Pérez Giraud, Romain Büchner, Bernd Brink, Jeroen van den Ortix, Carmine Dufouleur, Joseph |
| author_facet | Veyrat, Arthur Koepernik, Klaus Veyrat, Louis Shipunov, Grigory Kovalchuk, Iryna Aswartham, Saicharan Qu, Jiang Kumar, Ankit Ceccardi, Michele Caglieris, Federico Rodríguez, Nicolás Pérez Giraud, Romain Büchner, Bernd Brink, Jeroen van den Ortix, Carmine Dufouleur, Joseph |
| contents | Trigonal-PtBi2 has recently garnered significant interest as it exhibits unique superconducting topological surface states due to electron pairing on Fermi arcs connecting bulk Weyl nodes. Furthermore, topological nodal lines have been predicted in trigonal-PtBi2, and their signature was measured in magnetotransport as a dissipationless, i.e. odd under a magnetic field reversal, anomalous planar Hall effect. Understanding the topological superconducting surface state in trigonal-PtBi2 requires unravelling the intrinsic geometric properties of the normal state electronic wavefunctions and further studies of their hallmarks in charge transport characteristics are needed. In this work, we reveal the presence of a strong dissipative, i.e. even under a magnetic field reversal, planar Hall effect in PtBi2 at low magnetic fields and up to room temperature. This robust response can be attributed to the presence of Weyl nodes close to the Fermi energy. While this effect generally follows the theoretical prediction for a planar Hall effect in a Weyl semimetal, we show that it deviates from theoretical expectations at both low fields and high temperatures. We also discuss the origin of the PHE in our material, and the contributions of both the topological features in PtBi2 and its possible trivial origin. Our results strengthen the topological nature of PtBi2 and the strong influence of quantum geometric effects on the electronic transport properties of the low energy normal state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_12596 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Room temperature Planar Hall effect in nanostructures of trigonal-PtBi2 Veyrat, Arthur Koepernik, Klaus Veyrat, Louis Shipunov, Grigory Kovalchuk, Iryna Aswartham, Saicharan Qu, Jiang Kumar, Ankit Ceccardi, Michele Caglieris, Federico Rodríguez, Nicolás Pérez Giraud, Romain Büchner, Bernd Brink, Jeroen van den Ortix, Carmine Dufouleur, Joseph Mesoscale and Nanoscale Physics Trigonal-PtBi2 has recently garnered significant interest as it exhibits unique superconducting topological surface states due to electron pairing on Fermi arcs connecting bulk Weyl nodes. Furthermore, topological nodal lines have been predicted in trigonal-PtBi2, and their signature was measured in magnetotransport as a dissipationless, i.e. odd under a magnetic field reversal, anomalous planar Hall effect. Understanding the topological superconducting surface state in trigonal-PtBi2 requires unravelling the intrinsic geometric properties of the normal state electronic wavefunctions and further studies of their hallmarks in charge transport characteristics are needed. In this work, we reveal the presence of a strong dissipative, i.e. even under a magnetic field reversal, planar Hall effect in PtBi2 at low magnetic fields and up to room temperature. This robust response can be attributed to the presence of Weyl nodes close to the Fermi energy. While this effect generally follows the theoretical prediction for a planar Hall effect in a Weyl semimetal, we show that it deviates from theoretical expectations at both low fields and high temperatures. We also discuss the origin of the PHE in our material, and the contributions of both the topological features in PtBi2 and its possible trivial origin. Our results strengthen the topological nature of PtBi2 and the strong influence of quantum geometric effects on the electronic transport properties of the low energy normal state. |
| title | Room temperature Planar Hall effect in nanostructures of trigonal-PtBi2 |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2410.12596 |