Observation of chiral phonons
Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X.
American Association for the Advancement of Science (AAAS)
Published 2018
American Association for the Advancement of Science (AAAS)
Published 2018
| Publication Date: |
2018-02-03
|
|---|---|
| Publisher: |
American Association for the Advancement of Science (AAAS)
|
| Print ISSN: |
0036-8075
|
| Electronic ISSN: |
1095-9203
|
| Topics: |
Biology
Chemistry and Pharmacology
Geosciences
Computer Science
Medicine
Natural Sciences in General
Physics
|
| Keywords: |
Physics
|
| Published by: |
| _version_ | 1836398776763285504 |
|---|---|
| autor | Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. |
| beschreibung | Chirality reveals symmetry breaking of the fundamental interaction of elementary particles. In condensed matter, for example, the chirality of electrons governs many unconventional transport phenomena such as the quantum Hall effect. Here we show that phonons can exhibit intrinsic chirality in monolayer tungsten diselenide. The broken inversion symmetry of the lattice lifts the degeneracy of clockwise and counterclockwise phonon modes at the corners of the Brillouin zone. We identified the phonons by the intervalley transfer of holes through hole-phonon interactions during the indirect infrared absorption, and we confirmed their chirality by the infrared circular dichroism arising from pseudoangular momentum conservation. The chiral phonons are important for electron-phonon coupling in solids, phonon-driven topological states, and energy-efficient information processing. |
| citation_standardnr | 6154432 |
| datenlieferant | ipn_articles |
| feed_id | 25 |
| feed_publisher | American Association for the Advancement of Science (AAAS) |
| feed_publisher_url | http://www.aaas.org/ |
| insertion_date | 2018-02-03 |
| journaleissn | 1095-9203 |
| journalissn | 0036-8075 |
| publikationsjahr_anzeige | 2018 |
| publikationsjahr_facette | 2018 |
| publikationsjahr_intervall | 7984:2015-2019 |
| publikationsjahr_sort | 2018 |
| publisher | American Association for the Advancement of Science (AAAS) |
| quelle | Science |
| relation | http://science.sciencemag.org/cgi/content/short/359/6375/579?rss=1 |
| schlagwort | Physics |
| search_space | articles |
| shingle_author_1 | Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. |
| shingle_author_2 | Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. |
| shingle_author_3 | Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. |
| shingle_author_4 | Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. |
| shingle_catch_all_1 | Observation of chiral phonons Physics Chirality reveals symmetry breaking of the fundamental interaction of elementary particles. In condensed matter, for example, the chirality of electrons governs many unconventional transport phenomena such as the quantum Hall effect. Here we show that phonons can exhibit intrinsic chirality in monolayer tungsten diselenide. The broken inversion symmetry of the lattice lifts the degeneracy of clockwise and counterclockwise phonon modes at the corners of the Brillouin zone. We identified the phonons by the intervalley transfer of holes through hole-phonon interactions during the indirect infrared absorption, and we confirmed their chirality by the infrared circular dichroism arising from pseudoangular momentum conservation. The chiral phonons are important for electron-phonon coupling in solids, phonon-driven topological states, and energy-efficient information processing. Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. American Association for the Advancement of Science (AAAS) 0036-8075 00368075 1095-9203 10959203 |
| shingle_catch_all_2 | Observation of chiral phonons Physics Chirality reveals symmetry breaking of the fundamental interaction of elementary particles. In condensed matter, for example, the chirality of electrons governs many unconventional transport phenomena such as the quantum Hall effect. Here we show that phonons can exhibit intrinsic chirality in monolayer tungsten diselenide. The broken inversion symmetry of the lattice lifts the degeneracy of clockwise and counterclockwise phonon modes at the corners of the Brillouin zone. We identified the phonons by the intervalley transfer of holes through hole-phonon interactions during the indirect infrared absorption, and we confirmed their chirality by the infrared circular dichroism arising from pseudoangular momentum conservation. The chiral phonons are important for electron-phonon coupling in solids, phonon-driven topological states, and energy-efficient information processing. Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. American Association for the Advancement of Science (AAAS) 0036-8075 00368075 1095-9203 10959203 |
| shingle_catch_all_3 | Observation of chiral phonons Physics Chirality reveals symmetry breaking of the fundamental interaction of elementary particles. In condensed matter, for example, the chirality of electrons governs many unconventional transport phenomena such as the quantum Hall effect. Here we show that phonons can exhibit intrinsic chirality in monolayer tungsten diselenide. The broken inversion symmetry of the lattice lifts the degeneracy of clockwise and counterclockwise phonon modes at the corners of the Brillouin zone. We identified the phonons by the intervalley transfer of holes through hole-phonon interactions during the indirect infrared absorption, and we confirmed their chirality by the infrared circular dichroism arising from pseudoangular momentum conservation. The chiral phonons are important for electron-phonon coupling in solids, phonon-driven topological states, and energy-efficient information processing. Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. American Association for the Advancement of Science (AAAS) 0036-8075 00368075 1095-9203 10959203 |
| shingle_catch_all_4 | Observation of chiral phonons Physics Chirality reveals symmetry breaking of the fundamental interaction of elementary particles. In condensed matter, for example, the chirality of electrons governs many unconventional transport phenomena such as the quantum Hall effect. Here we show that phonons can exhibit intrinsic chirality in monolayer tungsten diselenide. The broken inversion symmetry of the lattice lifts the degeneracy of clockwise and counterclockwise phonon modes at the corners of the Brillouin zone. We identified the phonons by the intervalley transfer of holes through hole-phonon interactions during the indirect infrared absorption, and we confirmed their chirality by the infrared circular dichroism arising from pseudoangular momentum conservation. The chiral phonons are important for electron-phonon coupling in solids, phonon-driven topological states, and energy-efficient information processing. Zhu, H., Yi, J., Li, M.-Y., Xiao, J., Zhang, L., Yang, C.-W., Kaindl, R. A., Li, L.-J., Wang, Y., Zhang, X. American Association for the Advancement of Science (AAAS) 0036-8075 00368075 1095-9203 10959203 |
| shingle_title_1 | Observation of chiral phonons |
| shingle_title_2 | Observation of chiral phonons |
| shingle_title_3 | Observation of chiral phonons |
| shingle_title_4 | Observation of chiral phonons |
| timestamp | 2025-06-30T23:32:27.978Z |
| titel | Observation of chiral phonons |
| titel_suche | Observation of chiral phonons |
| topic | W V TE-TZ SQ-SU WW-YZ TA-TD U |
| uid | ipn_articles_6154432 |