Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy
Calculations of the single-particle density of states (SPDOS) of electron liquids have long predicted that there exist two distinct charged excitations: the usual quasiparticle consisting of an electron or hole, and a plasmaron consisting of a hole resonantly bound to real plasmons in the Fermi sea....
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/71271 https://orcid.org/0000-0001-5031-1673 |
| _version_ | 1811082462091018240 |
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| author | Ashoori, Raymond Dial, Oliver E. Pfeiffer, L. N. West, K. W. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Ashoori, Raymond Dial, Oliver E. Pfeiffer, L. N. West, K. W. |
| author_sort | Ashoori, Raymond |
| collection | MIT |
| description | Calculations of the single-particle density of states (SPDOS) of electron liquids have long predicted that there exist two distinct charged excitations: the usual quasiparticle consisting of an electron or hole, and a plasmaron consisting of a hole resonantly bound to real plasmons in the Fermi sea. Using tunneling spectroscopy to measure the SPDOS of a 2D electronic system, we demonstrate the detection of a plasmaron in a 2D system in which electrons have mass. With the application of a magnetic field we discover unpredicted magnetoplasmarons which resemble Landau levels with a negative index. |
| first_indexed | 2024-09-23T12:03:48Z |
| format | Article |
| id | mit-1721.1/71271 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:03:48Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/712712022-09-27T23:48:27Z Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy Ashoori, Raymond Dial, Oliver E. Pfeiffer, L. N. West, K. W. Massachusetts Institute of Technology. Department of Physics Ashoori, Raymond Ashoori, Raymond Dial, Oliver E. Calculations of the single-particle density of states (SPDOS) of electron liquids have long predicted that there exist two distinct charged excitations: the usual quasiparticle consisting of an electron or hole, and a plasmaron consisting of a hole resonantly bound to real plasmons in the Fermi sea. Using tunneling spectroscopy to measure the SPDOS of a 2D electronic system, we demonstrate the detection of a plasmaron in a 2D system in which electrons have mass. With the application of a magnetic field we discover unpredicted magnetoplasmarons which resemble Landau levels with a negative index. United States. Dept. of Energy (contract FG02-08ER46514) 2012-07-02T14:16:34Z 2012-07-02T14:16:34Z 2012-02 2012-01 Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/71271 Dial, O. et al. “Observations of Plasmarons in a Two-dimensional System: Tunneling Measurements Using Time-domain Capacitance Spectroscopy.” Physical Review B 85.8 (2012). ©2012 American Physical Society https://orcid.org/0000-0001-5031-1673 en_US http://dx.doi.org/10.1103/PhysRevB.85.081306 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Ashoori, Raymond Dial, Oliver E. Pfeiffer, L. N. West, K. W. Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy |
| title | Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy |
| title_full | Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy |
| title_fullStr | Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy |
| title_full_unstemmed | Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy |
| title_short | Observations of plasmarons in a two-dimensional system: Tunneling measurements using time-domain capacitance spectroscopy |
| title_sort | observations of plasmarons in a two dimensional system tunneling measurements using time domain capacitance spectroscopy |
| url | http://hdl.handle.net/1721.1/71271 https://orcid.org/0000-0001-5031-1673 |
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