Results 21 to 30 of about 467,022 (240)
Nanotechnology and Precision Engineering, 2022 This review considers the fundamental dynamical processes of metal nanoparticles during and after the impact of a femtosecond laser pulse on a nanoparticle, including the absorption of photons. Understanding the sequence of events after photon absorption
Victor K. Pustovalov
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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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Reciprocating Thermal Behavior in Multichannel Relaxation of Cobalt(II) Based Single Ion Magnets
Magnetochemistry, 2021 A series of mononuclear Co(II) complexes showing slow magnetic relaxation is assessed from the point of view of relaxation mechanisms. In certain cases, the reciprocating thermal behavior is detected: On cooling, the slow relaxation time is prolonged ...
Cyril Rajnák, Ján Titiš, Roman Boča
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Spin-electric coupling in quantum dots and molecular magnets [PDF]
, 2011 In this thesis we study several aspects related to the dynamics of electrons and holes in quantum dots, as well as dynamics of electron spins in molecular magnets.
Trif, Mircea
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Electronic Structure and Phonon Thermodynamics of Iron Alloys [PDF]
, 2013 Inelastic neutron scattering (INS) and nuclear-resonant inelastic x-ray scattering (NRIXS) were used to measure phonon spectra of FeV as a B2- ordered compound and as a bcc solid solution.
Muñoz, Jorge Alberto
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The critical role of ultra-low-energy vibrations in the relaxation dynamics of molecular qubits
Nature Communications, 2023 Understanding phonon-induced relaxation in molecular qubits is a crucial step in realizing their application potential. Garlatti at al. use a combination of inelastic X-ray scattering and density functional theory to investigate the role of low-energy ...
E. Garlatti +12 more
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Thermalization and relaxation mediated by phonon management in tin-lead perovskites
Light: Science & Applications, 2023 Understanding and control of ultrafast non-equilibrium processes in semiconductors is key to making use of the full photon energy before relaxation, leading to new ways to break efficiency limits for solar energy conversion.
Linjie Dai, Junzhi Ye, Neil C. Greenham
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Results in Physics, 2023 Assembling new van der Waals (vdW) materials is challenging for the development of two-dimensional (2D) function devices. The MoW3X8 membrane (X = Se, Te) is a new 2D TMDs membrane molecule composed of one WX2 monolayer and one WX2-MoX2-WX2 sandwich ...
Liang Zhang +6 more
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Phonon Dispersion and Relaxation Time in Uranium Dioxide [PDF]
, 2017 Phonon dispersion branches are used to obtain an effective relaxation time to calculate thermal conductivity of Uranium Dioxide (UO2). The method presented closely follows that of Deskins’ phonon-phonon interaction that uses a three-phonon process which ...
Parkinson, Dallin
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Temperature Dependence of Phonons in Elemental Cubic Metals Studied by Inelastic Scattering of Neutrons and X-Rays [PDF]
, 2009 The vibrations of atoms in a crystal (phonons) make up the majority of its entropy (or heat capacity), and these vibrations are typically modeled by simple harmonic oscillators.
Kresch, Max G.
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