Results 21 to 30 of about 3,053,858 (295)
Double quantum dots in carbon nanotubes [PDF]
Physical Review B, 2010 We study the two-electron eigenspectrum of a carbon-nanotube double quantum dot with spin-orbit coupling. Exact calculation are combined with a simple model to provide an intuitive and accurate description of single-particle and interaction effects. For symmetric dots and weak magnetic fields, the two-electron ground state is antisymmetric in the spin ...
von Stecher, Javier +4 more
openaire +4 more sources
Investigation of carbon nanotube quantum dots connected to ferromagnetic leads [PDF]
, 2015 The implementation of ferromagnetic contacts in complex nanoelectronic devices, e.g. in spin-valves bears great potential for applications and fundamental investigations. Spin-valves are structures with two magnetic contacts and a non-magnetic medium (
Samm, Julia
core +1 more source
Accessing the quantum world through electronic transport in carbon nanotubes [PDF]
, 2006 In this thesis we will focus on (a) superconducting electrodes attached to carbon nanotube quantum dots in order to study the effects of superconducting correlations on quantum systems and (b) local gate control of carbon nanotubes in order to define
Gräber, Matthias Rudolf
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Thermally activated charge fluctuations in GaAs double quantum dots [PDF]
, 2014 In this thesis, laterally defined GaAs quantum dots and double quantum dots are investigated by means of real-time charge sensing. A quantum dot charge sensor, adjacent to the investigated double dot system, detects single electron tunneling with ...
Biesinger, Daniel Erich Fridolin
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As-grown carbon nanotube quantum dots with superconducting contacts [PDF]
, 2014 The progress in fabrication technology and the miniaturization of nanostructured devices in the recent past has attracted a lot of interest in the field of electronic circuits on the nanoscale where the system's spatial dimensions allow for the ...
Nau, Stefan
core +1 more source
Eurasian Physical Technical Journal, 2021 "In the presented work, carbon quantum dots were obtained by microwave synthesis based on citric acid and L-cysteine. The resulting particles were characterized by electron and probe microscopy, dynamic light scattering and Fourier transform infrared ...
N.Kh. Ibrayev +2 more
doaj +1 more source
Gate-Defined Quantum Dots on Carbon Nanotubes [PDF]
Nano Letters, 2005 We report the realization of nanotube-based quantum dot structures that use local electrostatic gating to produce individually controllable dots in series along a nanotube. Electrostatic top-gates produce depletion regions in the underlying tube; a pair of such depletion regions defines a quantum dot.
Biercuk, M. J. +4 more
openaire +4 more sources
Green fluorescent sensor based on carbon quantum dots for Cr(VI) determination [PDF]
شیمی کاربردی روز, 2018 In this study, a new, cheap and green fluorescence sensor based on carbon quantum dots was used for Cr (VI) determination. Carbon quantum dots were synthesized from citric acid, polyvidon and boric acid by microwave assisted method.
Reza Tabaraki +2 more
doaj +1 more source
Editorial for the Special Issue Entitled “Carbon-Based Quantum Dots”
Nanomaterials, 2023 Carbon-based quantum dots, also known as carbon dots (CDs), are a unique class of carbon-based nanoparticles with sizes below 10 nm [...]
Su Chen
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Beilstein Journal of Nanotechnology, 2023 Carbon quantum dots as a novel type of carbon nanomaterials have attracted the attention of many researchers because of their unique optical, antibacterial, and anticancer properties as well as their biocompatibility.
Zoran M. Marković +9 more
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