Collective excitations in two-dimensional electron stripes: Transport and optical detection of resonant microwave absorption

Кукушкин, И. В.; Muravev, V. M.; Smet, J. H.; Hauser, M.; Dietsche, W.; Klitzing, K. von

doi:10.1103/physrevb.73.113310

Cited by 49 publications

(50 citation statements)

References 13 publications

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“…(33). A similar formula holds for the 2D electron gas 101,102 . Away from the semi-classical regime (i.e., for low Fermi energy or high magnetic fields), the quantization of the electronic spectrum must be taken into account.…”

Section: Otto Configuration In a Static Magnetic Fieldmentioning

confidence: 81%

A Primer on Surface Plasmon-Polaritons in Graphene

Bludov

Ferreira

Peres

et al. 2013

Int. J. Mod. Phys. B

353

358

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We discuss the properties of surface plasmons-polaritons in graphene and describe three possible ways of coupling electromagnetic radiation in the terahertz (THz) spectral range to this type of surface waves. (i) the attenuated total reflection (ATR) method using a prism in the Otto configuration, (ii) graphene micro-ribbon arrays or monolayers with modulated conductivity, (iii) a metal stripe on top of the graphene layer, and (iv) graphene-based gratings. The text provides a number of original results along with their detailed derivation and discussion.

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Section: Otto Configuration In a Static Magnetic Fieldmentioning

confidence: 81%

A Primer on Surface Plasmon-Polaritons in Graphene

Bludov

Ferreira

Peres

et al. 2013

Int. J. Mod. Phys. B

353

358

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“…This would then shift all the ω c -related resistivity oscillations and would completely destroy any seeming agreement with experiments (the depolarization shift is not negligible under the real experimental conditions, see a detailed comparison in Table I of Ref. 70 ; to the contrary, it is very large and has been many times observed both in the absorption [71][72][73] experiments). Moreover, one should not ignore that (already mentioned) fact that about ten years before the first MIZRS experiment by Mani et al…”

Section: (B)mentioning

confidence: 96%

Theory of microwave-induced zero-resistance states in two-dimensional electron systems

Mikhaǐlov

2011

Phys. Rev. B

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The phenomena of the microwave induced zero resistance states (MIZRS) and the microwave induced resistance oscillations (MIRO) were discovered in the ultraclean two-dimensional electron systems in 2001 -2003 and have attracted great interest of researchers. In spite of numerous theoretical efforts the true origin of these effects remains unknown so far. We show that the MIRO/ZRS phenomena are naturally explained by the influence of the ponderomotive forces which arise in the near-contact regions of the two-dimensional electron gas under the action of microwaves. The proposed analytical theory is in agreement with all experimental facts accumulated so far and provides a simple and self-evident explanation of the microwave frequency, polarization, magnetic field, mobility, power and temperature dependencies of the observed effects.

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“…The large retardation parameter indicates hybridization between the plasmon and photon modes. This leads to more pronounced manifestation of higher magnetoplasma harmonics, together with a reduced slope of the magnetodispersion curves that cross the cyclotron line [29][30][31]. As we will see later, this property contributes to the CR fine structure resolution.…”

mentioning

confidence: 91%

Fine structure of cyclotron resonance in a two-dimensional electron system

et al. 2016

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It is established that cyclotron resonance (CR) in a high-quality GaAs/AlGaAs two-dimensional electron system (2DES) originates as a pure resonance, that does not hybridize with dimensional magnetoplasma excitations. The magnetoplasma resonances form a fine structure of the CR. The observed fine structure of the CR results from the interplay between coherent radiative and incoherent collisional mechanisms of 2D plasma relaxation. We show that the range of 2DES filling factors from which the phenomenon arises is intimately connected to the fundamental fine-structure constant.Cyclotron resonance (CR) spectroscopy is the most direct and convenient method of characterizing the Fermi surface and determining the effective mass of semiconductors [1][2][3]. In a two-dimensional electron system (2DES), a perpendicular magnetic field quenches the inplane motion of electrons into cyclotron orbits. In turn, if the phase and polarization of the incident electromagnetic radiation are synchronized with the electron orbital motion, CR is triggered. The first observation of CR in 2DESs was reported for charged carriers in an inversion layer on Si [4, 5]. Subsequently, CR spectroscopy has been successfully applied to research on many two-dimensional systems, for example, isotropic 2D carriers in GaAs heterostructures [6][7][8], composite fermions [9], heavy fermions in MgZnO/ZnO heterojunctions [10,11], and anisotropic heavy fermions in AlAs quantum wells [12,13].It is widely believed that the cyclotron resonance originates from the dimensional magnetoplasma resonance [15,16,20]. The frequency of the hybrid cyclotron magnetoplasma mode is described by the equationwhere ω c = eB/m * c is the cyclotron frequency, and ω p is the dimensional plasmon frequency [17] (Gaussian units are used in this Letter unless otherwise stated):Here, n s and m * are the density and the effective mass of the 2D electrons, and ε is the effective permittivity of the surrounding medium. For a narrow 2DES stripe of width W , the plasmon wavevector can be approximately described by q = πN/W (N = 1, 2, . . . is the number of the plasmon harmonic).Contrary to general believe, we discovered that the CR originates as a pure resonance, that does not hybridize with dimensional magnetoplasma excitations. The CR rises as a single peak with superimposed contribution from different dimensional magnetoplasma modes. Therefore, initially the CR line shape exhibits a multipeak structure. We show that the CR fine structure is resolved when the coherent radiative 2D plasma relaxation dominates the incoherent collisional damping. In large samples, this regime appears when the 2D conductivity 2πσ xx is much larger than c. Moreover, the range of 2DES filling factors ν in which the CR fine structure necessarily arises is dictated by the relation 2πσ xy > c. The latter can be rewritten very elegantly as ν > 1/α, where α = e 2 / c ≈ 1/137 is the fundamental fine-structure constant.Experiments were performed on a set of high-quality GaAs/AlGaAs single quantum wells with a well w...

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Collective excitations in two-dimensional electron stripes: Transport and optical detection of resonant microwave absorption

Cited by 49 publications

References 13 publications

A Primer on Surface Plasmon-Polaritons in Graphene

A Primer on Surface Plasmon-Polaritons in Graphene

Theory of microwave-induced zero-resistance states in two-dimensional electron systems

Fine structure of cyclotron resonance in a two-dimensional electron system

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