Results 31 to 40 of about 6,518 (175)

Perspectives for the Growth of Epitaxial 2D van der Waals Layers with an Emphasis on Ferromagnetic Metals for Spintronics

open access: yesAdvanced Materials Interfaces, 2022
Wafer scale epitaxial growth of 2D van der Waals materials and heterostructures is of ultimate importance for applications. Using synthetic thin film methods is also important to realize 2D materials which do not exist in nature and cannot be grown in ...
Athanasios Dimoulas
doaj   +1 more source

Back gating of a two-dimensional hole gas in a SiGe quantum well [PDF]

open access: yes, 1997
A device comprising a low-resistivity, n-type, Si substrate as a back gate to a p-type (boron), remote-doped, SiGe quantum well has been fabricated and characterized.
A. G. R. Evans   +12 more
core   +1 more source

The challenges of nanostructures for theory [PDF]

open access: yes, 2003
It is tempting to believe that modelling in nanotechnology is much the same as that for conventional solid-state physics. However, important areas of nanotechnology address different systems.
Stoneham, AM
core   +1 more source

In-Band Pumped Continuous-Wave Lasers Based on Ho:KY(WO4)2 Crystal and Ho:KGdYbY(WO4)2 Epitaxial Layer

open access: yesПриборы и методы измерений, 2020
2 μm lasers are in demand for a number of practical applications, such as environmental monitoring, remote sensing, medicine, material processing, and are also used as a pump sources for optical parametric generators.
O. P. Dernovich   +6 more
doaj   +1 more source

Quantum-Matter Heterostructures

open access: yes, 2016
Combining the power and possibilities of heterostructure engineering with the collective and emergent properties of quantum materials, quantum-matter heterostructures open a new arena of solid-state physics.
Boschker, Hans, Mannhart, Jochen
core   +1 more source

III-V on-silicon sources for optical interconnect applications [PDF]

open access: yes, 2014
Optical interconnects require efficient and flexible optical sources. This paper presents results on two technology platforms being developed for realizing these.
Keyvaninia, Shahram   +9 more
core   +1 more source

Scattering Mechanisms in a High Mobility Low Density Carbon-Doped (100) GaAs Two-Dimensional Hole System [PDF]

open access: yes, 2011
We report on a systematic study of the density dependence of mobility in a low-density Carbon-doped (100) GaAs two-dimensional hole system (2DHS). At T= 50 mK, a mobility of 2.6 x 10^6 cm^2/Vs at a density p=6.2 x 10^10 cm^- was measured.
E. F. Schubert   +8 more
core   +3 more sources

Non-parabolicity of the conduction band of wurtzite GaN

open access: yes, 2003
Using cyclotron resonance, we measure the effective mass, $m$*, of electrons in AlGaN/GaN heterostructures with densities, $n_{2D}\sim 1-6\times10^{12}$cm$^{-2}$. From our extensive data, we extrapolate a band edge mass of $(0.208\pm0.002) m_e$.
H. L. Stormer   +6 more
core   +1 more source

Impact of 2D–3D Heterointerface on Remote Epitaxial Interaction through Graphene

open access: yesACS Nano, 2021
Remote epitaxy has drawn attention as it offers epitaxy of functional materials that can be released from the substrates with atomic precision, thus enabling production and heterointegration of flexible, transferrable, and stackable freestanding single-crystalline membranes.
Hyunseok Kim   +21 more
openaire   +2 more sources

Fermi-Edge Singularities in AlxGa1-xAs Quantum Wells : Extrinsic Versus Many-Body Scattering Processes

open access: yes, 2000
A Fano resonance mechanism is evidenced to control the formation of optical Fermi-edge singularities in multi-subband systems such as remotely doped AlxGa1-xAs heterostructures.
F. Laruelle   +22 more
core   +1 more source

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