File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1126/science.aar2711
- Scopus: eid_2-s2.0-85041287701
- PMID: 29420291
- WOS: WOS:000423795800043
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Observation of chiral phonons
Title | Observation of chiral phonons |
---|---|
Authors | |
Issue Date | 2018 |
Publisher | American Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org |
Citation | Science, 2018, v. 359 n. 6375, p. 579-582 How to Cite? |
Abstract | 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. © 2017 The Authors, some rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/257366 |
ISSN | 2023 Impact Factor: 44.7 2023 SCImago Journal Rankings: 11.902 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhu, H | - |
dc.contributor.author | Yi, J | - |
dc.contributor.author | Li, MY | - |
dc.contributor.author | Xiao, J | - |
dc.contributor.author | Zhang, L | - |
dc.contributor.author | Yang, CW | - |
dc.contributor.author | Kaindl, RA | - |
dc.contributor.author | Li, LJ | - |
dc.contributor.author | Wang, Y | - |
dc.contributor.author | Zhang, X | - |
dc.date.accessioned | 2018-07-27T07:57:36Z | - |
dc.date.available | 2018-07-27T07:57:36Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Science, 2018, v. 359 n. 6375, p. 579-582 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.uri | http://hdl.handle.net/10722/257366 | - |
dc.description.abstract | 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. © 2017 The Authors, some rights reserved. | - |
dc.language | eng | - |
dc.publisher | American Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org | - |
dc.relation.ispartof | Science | - |
dc.title | Observation of chiral phonons | - |
dc.type | Article | - |
dc.identifier.email | Zhang, X: president@hku.hk | - |
dc.identifier.authority | Zhang, X=rp02411 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1126/science.aar2711 | - |
dc.identifier.pmid | 29420291 | - |
dc.identifier.scopus | eid_2-s2.0-85041287701 | - |
dc.identifier.hkuros | 700003492 | - |
dc.identifier.volume | 359 | - |
dc.identifier.issue | 6375 | - |
dc.identifier.spage | 579 | - |
dc.identifier.epage | 582 | - |
dc.identifier.isi | WOS:000423795800043 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0036-8075 | - |