0000000001063229

AUTHOR

Carlos Calero

0000-0002-1977-1724

showing 2 related works from this author

Field Dependence of the Electron Spin Relaxation in Quantum Dots

2005

Interaction of the electron spin with local elastic twists due to transverse phonons has been studied. Universal dependence of the spin relaxation rate on the strength and direction of the magnetic field has been obtained in terms of the electron gyromagnetic tensor and macroscopic elastic constants of the solid. The theory contains no unknown parameters and it can be easily tested in experiment. At high magnetic field it provides parameter-free lower bound on the electron spin relaxation in quantum dots.

PhysicsCondensed Matter - Materials ScienceCondensed matter physicsSpin polarizationStatistical Mechanics (cond-mat.stat-mech)Relaxation (NMR)General Physics and AstronomyMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences02 engineering and technologyElectronZero field splitting021001 nanoscience & nanotechnology01 natural sciences7. Clean energyElectron magnetic dipole momentSpin magnetic momentQuantum dot0103 physical sciencesSpinplasmonics010306 general physics0210 nano-technologyCondensed Matter - Statistical Mechanics
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Quantum dynamics of a nanomagnet in a rotating field

2005

Quantum dynamics of a two-state spin system in a rotating magnetic field has been studied. Analytical and numerical results for the transition probability have been obtained along the lines of the Landau-Zener-Stueckelberg theory. The effect of various kinds of noise on the evolution of the system has been analyzed.

PhysicsCondensed Matter - Materials ScienceRotating magnetic fieldCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsField (physics)Quantum dynamicsMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciencesQuantum Hall effectCondensed Matter Physics01 natural sciencesNoise (electronics)Nanomagnet010305 fluids & plasmasElectronic Optical and Magnetic MaterialsBackground noiseSpin crossoverMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciences010306 general physicsPhysical Review B
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