Crystal and molecular structure of L‐N‐acetylhistidinamide

Pfeiffer, D.; Reck, G.; Oehlke, J.

doi:10.1002/crat.2170201009

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…1 was first realized in the early 2000s, 37,38 although single heterointerfaces with one such doping layer appeared much earlier. 39,40 The SPSL-doping scheme augments the advantage of weak RI scattering of the 2DEG electrons. In AlAs/GaAs heterostructures with thick layers, the X-minima in AlAs are higher in energy than the Γ-minimum in GaAs.…”

Section: Introductionmentioning

confidence: 99%

Mobility and quantum mobility of modern GaAs/AlGaAs heterostructures

Sammon

Zudov

Shklovskiǐ³

2018

Phys. Rev. Materials

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In modern GaAs/AlxGa1−xAs heterostructures with record high mobilities, a two-dimensional electron gas (2DEG) in a quantum well is provided by two remote donor δ-layers placed on both sides of the well. Each δ-layer is located within a narrow GaAs well, flanked by narrow AlAs layers which capture excess electrons from donors. We show that each excess electron is localized in a compact dipole atom with the nearest donor. Nevertheless, excess electrons screen both the remote donors and background impurities. When the fraction of remote donors filled by excess electrons f is small, the remote donor limited quantum mobility grows as f 3 and becomes larger than the background impurity limited one at a characteristic value fc. We also calculate both the mobility and the quantum mobility limited by the screened background impurities with concentrations N1 in AlxGa1−xAs and N2 in GaAs, which allows one to estimate N1 and N2 from the measured mobilities. Taken together, our findings should help to identify avenues for further improvement of modern heterostructures.

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Section: Introductionmentioning

confidence: 99%

Mobility and quantum mobility of modern GaAs/AlGaAs heterostructures

Sammon

Zudov

Shklovskiǐ³

2018

Phys. Rev. Materials

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“…(g) Harada & Iitaka (1977). (h) Pfeiffer, Reck & Oehlke (1985). ( respectively, with g-corresponding to the sterically most favored and g* the sterically least favored conformation.…”

Section: Discussionmentioning

confidence: 99%

Histidyl conformations and short N–H^...N hydrogen bonds: Structure of D,L-histidyl-L,D-histidine pentahydrate

Krause¹,

Baures²,

Eggleston³

1991

Acta Crystallogr Sect B

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Crystal and molecular structure of L‐N‐acetylhistidinamide

Abstract: The title compound crystallizes in tho monoclinic space group P 2, with 2 formula units

Cited by 2 publications

References 5 publications

Mobility and quantum mobility of modern GaAs/AlGaAs heterostructures

Mobility and quantum mobility of modern GaAs/AlGaAs heterostructures

Histidyl conformations and short N–H^...N hydrogen bonds: Structure of D,L-histidyl-L,D-histidine pentahydrate

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Crystal and molecular structure of L‐N‐acetylhistidinamide

Abstract: The title compound crystallizes in tho monoclinic space group P 2, with 2 formula units

Cited by 2 publications

References 5 publications

Mobility and quantum mobility of modern GaAs/AlGaAs heterostructures

Mobility and quantum mobility of modern GaAs/AlGaAs heterostructures

Histidyl conformations and short N–H...N hydrogen bonds: Structure of D,L-histidyl-L,D-histidine pentahydrate

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Histidyl conformations and short N–H^...N hydrogen bonds: Structure of D,L-histidyl-L,D-histidine pentahydrate