Charge carrier correlation in the electron-doped t-J model [PDF]
We study the t-t'-t''-J model with parameters chosen to model an electron-doped high temperature superconductor. The model with one, two and four charge carriers is solved on a 32-site lattice using exact diagonalization.
P. Fulde, P. W. Leung, W. Stephan
core +1 more source
Towards automated design of quantum cascade lasers [PDF]
We present an advanced technique for the design and optimization of GaAs/AlGaAs quantum cascade laser structures. It is based on the implementation of the simulated annealing algorithm with the purpose of determining a set of design parameters that ...
Aleksandra Mirčetić +8 more
core +1 more source
Generation of spin-polarized currents via cross-relaxation with dynamically pumped paramagnetic impurities [PDF]
Key to future spintronics and spin-based information processing technologies is the generation, manipulation, and detection of spin polarization in a solid state platform.
Doherty, Marcus W., Meriles, Carlos A.
core +2 more sources
Slow cooling and efficient extraction of C-exciton hot carriers in MoS2 monolayer [PDF]
In emerging optoelectronic applications, such as water photolysis, exciton fission and novel photovoltaics involving low-dimensional nanomaterials, hot-carrier relaxation and extraction mechanisms play an indispensable and intriguing role in their photo ...
Bao, Q +14 more
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Direct and Simultaneous Observation of Ultrafast Electron and Hole Dynamics in Germanium [PDF]
Understanding excited carrier dynamics in semiconductors is crucial for the development of photovoltaics and efficient photonic devices. However, overlapping spectral features in optical/NIR pump-probe spectroscopy often render assignments of separate ...
Borja, Lauren J. +12 more
core +3 more sources
Ultrafast nonlinear optical response of Dirac fermions in graphene [PDF]
The speed of solid-state electronic devices, determined by the temporal dynamics of charge carriers, could potentially reach unprecedented petahertz frequencies through direct manipulation by optical fields, consisting in a million-fold increase from ...
Baudisch, Matthias +10 more
core +2 more sources
Thickness-dependent optical response and ultrafast carrier dynamics of PtSe2 films
As a novel transition metal dichalcogenide material with high carrier mobility, adjustable band gap and excellent stability, the photocarrier ultrafast dynamics of PtSe2 films with the different thickness is researched by ultrafast transient absorption ...
ZeSong Zheng +8 more
doaj +1 more source
HYPOCATALASEMIA: A NEW GENETIC CARRIER STATE* [PDF]
A clinical, biochemical and genetic study has been made of a rare hereditary disease, acatalasemia, characterized by the absence of activity of the enzyme catalase from the blood and other tissues. Clinically, about half of the acatalasemics suffer from a peculiar type of oral gangrene (Takahara's disease) in childhood.
S, TAKAHARA +5 more
openaire +2 more sources
Dominant role of many-body effects on the carrier distribution function of quantum dot lasers [PDF]
The effects of free-carrier-induced shift and broadening on the carrier distribution function are studied considering different extreme cases for carrier statistics (Fermi–Dirac and random carrier distributions) as well as quantum dot (QD) ensemble ...
Childs, David +3 more
core +1 more source
Superconductivity from Undressing
Photoemission experiments in high $T_c$ cuprates indicate that quasiparticles are heavily 'dressed' in the normal state, particularly in the low doping regime.
A. Bhattacharya +55 more
core +1 more source

