Cyclotron motion without magnetic field
Non-trivial Bloch band overlaps endow rich phenomena to a wide variety of quantum materials. The most prominent example is a transverse current in the absence of a magnetic field (i.e. the anomalous Hall effect). Here we show that, in addition to a dc Hall effect, anomalous Hall materials possess ci...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab351c |
| _version_ | 1797749984259473408 |
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| author | Eddwi H Hasdeo Alex J Frenzel Justin C W Song |
| author_facet | Eddwi H Hasdeo Alex J Frenzel Justin C W Song |
| author_sort | Eddwi H Hasdeo |
| collection | DOAJ |
| description | Non-trivial Bloch band overlaps endow rich phenomena to a wide variety of quantum materials. The most prominent example is a transverse current in the absence of a magnetic field (i.e. the anomalous Hall effect). Here we show that, in addition to a dc Hall effect, anomalous Hall materials possess circulating currents and cyclotron motion without magnetic field. These are generated from the intricate wavefunction dynamics within the unit cell. Curiously, anomalous cyclotron motion exhibits an intrinsic decay in time (even in pristine materials) displaying a characteristic power law decay. This reveals an intrinsic dephasing similar to that of inhomogeneous broadening of spins. Circulating currents can manifest as the emission of circularly polarized light pulses in response to an incident linearly polarized (pulsed) electric field, and provide a direct means of interrogating a type of Zitterbewegung of quantum materials with broken time reversal symmetry. |
| first_indexed | 2024-03-12T16:27:29Z |
| format | Article |
| id | doaj.art-6f0ef4fb06b9463d9dcf388b25d91c44 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:27:29Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-6f0ef4fb06b9463d9dcf388b25d91c442023-08-08T15:40:31ZengIOP PublishingNew Journal of Physics1367-26302019-01-0121808302610.1088/1367-2630/ab351cCyclotron motion without magnetic fieldEddwi H Hasdeo0https://orcid.org/0000-0002-4873-2927Alex J Frenzel1Justin C W Song2https://orcid.org/0000-0002-5175-6970Institute of High Performance Computing, Agency for Science, Technology, and Research, 138632, Singapore; Research Center for Physics, Indonesian Institute of Sciences, Kawasan Puspiptek Serpong, 15314, IndonesiaDepartment of Physics, University of California , San Diego, La Jolla, CA 92039, United States of AmericaInstitute of High Performance Computing, Agency for Science, Technology, and Research, 138632, Singapore; Division of Physics and Applied Physics, Nanyang Technological University , 637371, SingaporeNon-trivial Bloch band overlaps endow rich phenomena to a wide variety of quantum materials. The most prominent example is a transverse current in the absence of a magnetic field (i.e. the anomalous Hall effect). Here we show that, in addition to a dc Hall effect, anomalous Hall materials possess circulating currents and cyclotron motion without magnetic field. These are generated from the intricate wavefunction dynamics within the unit cell. Curiously, anomalous cyclotron motion exhibits an intrinsic decay in time (even in pristine materials) displaying a characteristic power law decay. This reveals an intrinsic dephasing similar to that of inhomogeneous broadening of spins. Circulating currents can manifest as the emission of circularly polarized light pulses in response to an incident linearly polarized (pulsed) electric field, and provide a direct means of interrogating a type of Zitterbewegung of quantum materials with broken time reversal symmetry.https://doi.org/10.1088/1367-2630/ab351cBerry phaseBerry curvatureanomalous velocitycyclotron motion |
| spellingShingle | Eddwi H Hasdeo Alex J Frenzel Justin C W Song Cyclotron motion without magnetic field New Journal of Physics Berry phase Berry curvature anomalous velocity cyclotron motion |
| title | Cyclotron motion without magnetic field |
| title_full | Cyclotron motion without magnetic field |
| title_fullStr | Cyclotron motion without magnetic field |
| title_full_unstemmed | Cyclotron motion without magnetic field |
| title_short | Cyclotron motion without magnetic field |
| title_sort | cyclotron motion without magnetic field |
| topic | Berry phase Berry curvature anomalous velocity cyclotron motion |
| url | https://doi.org/10.1088/1367-2630/ab351c |
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