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Resonance peak shift in the photocurrent of ultrahigh-mobility two-dimensional electron systems

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorIñarrea Las Heras, Jesúses
dc.contributor.funderEuropean Commissionen
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2021-02-03T16:10:45Z
dc.date.available2021-02-03T16:10:45Z
dc.date.issued2020-03-15
dc.description.abstractWe report on a theoretical study on the rise of strong peaks at the harmonics of the cyclotron resonance in the irradiated magnetoresistance in ultraclean two-dimensional electron systems. The motivation is the experimental observation of a totally unexpected strong resistance peak showing up at the second harmonic. We extend the radiation-driven electron orbit model (previously developed to study photocurrent oscillations and zero resistance states) to an ultraclean scenario that implies a longer scattering time and longer mean free path. Thus, when the mean free path is equivalent, in terms of energy, to twice the cyclotron energy (2ℏwc), the electron behaves as under an effective magnetic field that is twice the one actually applied. Then, at high radiation power and/or low temperature, a resistance spike can be observed at the second harmonic. For even cleaner samples the energy distance could increase to three or four times the cyclotron energy giving rise to resistance peaks at higher harmonics (third, fourth, etc.), i.e., a resonance peak shift to lower magnetic fields as the quality of the sample increases. Thus, by selecting the sample mobility, one automatically would select the radiation resonance response without altering the radiation frequency.en
dc.description.sponsorshipThis work is supported by the MINECO (Spain) under Grant No. MAT2017-86717-P, ITN Grant No. 234970 (EU), and Grupo de Matemáticas Aplicadas a la Materia Condensada (UC3M), Unidad Asociada al CSIC.en
dc.description.statusPublicadoes
dc.format.extent5
dc.identifier.bibliographicCitationPhysical Review B, (2020), 101(11), 115419, [5] p.en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.101.115419
dc.identifier.issn1098-0121
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue11
dc.identifier.publicationlastpage5
dc.identifier.publicationtitlePHYSICAL REVIEW Ben
dc.identifier.publicationvolume101(115419)
dc.identifier.urihttps://hdl.handle.net/10016/31857
dc.identifier.uxxiAR/0000025623
dc.language.isoengen
dc.publisherAmerican Physical Societyen
dc.relation.projectIDGobierno de España. MAT2017-86717-Pes
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7-ITN-234970en
dc.rights©2020 American Physical Societyen
dc.rights.accessRightsopen accessen
dc.subject.ecienciaFísicaes
dc.subject.otherMagnetotransporten
dc.subject.otherOptical and microwave phenomenaen
dc.subject.otherTransport phenomenaen
dc.subject.otherTwo-dimensional electron systemen
dc.titleResonance peak shift in the photocurrent of ultrahigh-mobility two-dimensional electron systemsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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