2004
DOI: 10.1016/j.physe.2003.12.056
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Self-assembled quantum dots as probes for Landau-level spectroscopy

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Cited by 10 publications
(9 citation statements)
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“…A magnetic field dependent LL broadening was realized with ⌫ = ⌫ 0 B 1/2 and ⌫ 0 = 0.5 meV. 15 As indicated in Fig. 3, two currents are injected into the sample.…”
Section: Resultsmentioning
confidence: 99%
“…A magnetic field dependent LL broadening was realized with ⌫ = ⌫ 0 B 1/2 and ⌫ 0 = 0.5 meV. 15 As indicated in Fig. 3, two currents are injected into the sample.…”
Section: Resultsmentioning
confidence: 99%
“…This results in an overlap of the ohmic (dissipative) regimes of several LLs at low fields. In order to get the individual filling factors in case of LL overlap, the individual spin split LLs have been calculated using the standard parameters for GaAs and a LL broadening according to Γ = Γ 0 √ B [108] has been used by setting Γ 0 = 0.5meV .…”
Section: Simulation Resultsmentioning
confidence: 99%
“…It is interesting to note, that the pre-factor of E F , which is (L 2 /e Ṽ )(eB/h), has the meaning of an average density of states (DOS) in the basis cell of the network, provided that we associate the LL broadening with e Ṽ . In order to consider this aspect in a little more detail, we assume a Gaussian shaped density of states for a single LL [108] and calculate the DOS in the center of the LL as follows:…”
Section: The Saddle Point Problemmentioning
confidence: 99%
“…The radial mode functions f n,l (r) are given by polynomials multiplied by a Gaussian exp{−r 2 /(2ℓ B ) 2 } with the magnetic length ℓ B = 1/ √ qB. For example, the lowest Landau levels with n = 0 have f n=0,l (r) ∝ r l exp{−r 2 /(2ℓ B ) 2 } with l ≥ 0, which can be experimentally mapped [29,39].…”
Section: Magnetic Fieldmentioning
confidence: 99%
“…[25,26]. As a concrete experimental realization, we consider a quantum dot coupled to a reservoir in the form of an effectively two-dimensional electron gas (2DEG) [27][28][29][30][31].…”
mentioning
confidence: 99%