Search results for "ARPES"

showing 5 items of 15 documents

Detekcia vektora spinovej polarizácie vo viackanálovej spinovo rozlýšenej fotoemissie za použitia spinového filtra založeného na Ir(001)

2016

Physical review / B 95(10), 104423 (2017). doi:10.1103/PhysRevB.95.104423

Physics - Instrumentation and DetectorsPhotoemission spectroscopyFOS: Physical sciences02 engineering and technologyZero field splitting01 natural sciences530OpticsSpin wave0103 physical sciencesFigure of meritDFT ARPES SPLEEDddc:530010306 general physicsSpin-½PhysicsSpin polarizationbusiness.industryScatteringInstrumentation and Detectors (physics.ins-det)021001 nanoscience & nanotechnologyDensity functional theoryCondensed Matter::Strongly Correlated ElectronsAtomic physics0210 nano-technologybusiness
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Spinovo rozlisena time-of-flight k-reozlisena fotoemissia Ir-- Kompletny fotoemissny experiment.

2017

Ultramicroscopy 183, 19 - 29 (2017). doi:10.1016/j.ultramic.2017.06.025

Physics570Spin polarizationInverse photoemission spectroscopyAnalytical chemistryARPES spinovo rozlisena fotoemissia jednokrokovy modelFermi surfaceAngle-resolved photoemission spectroscopyFermi energy02 engineering and technologyElectron021001 nanoscience & nanotechnologyARPES spin resolved PES one-step model01 natural sciencesAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsTime of flightEffective mass (solid-state physics)ddc:5700103 physical sciencesCondensed Matter::Strongly Correlated ElectronsAtomic physics010306 general physics0210 nano-technologyInstrumentation
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A first-principles time-dependent density functional theory framework for spin and time-resolved angular-resolved photoelectron spectroscopy in perio…

2017

We present a novel theoretical approach to simulate spin, time, and angular-resolved photoelectron spectroscopy (ARPES) from first-principles that is applicable to surfaces, thin films, few layer systems, and low-dimensional nanostructures. The method is based on a general formulation in the framework of time-dependent density functional theory (TDDFT) to describe the real time-evolution of electrons escaping from a surface under the effect of any external (arbitrary) laser field. By extending the so-called t-SURFF method to periodic systems one can calculate the final photoelectron spectrum by collecting the flux of the ionization current trough an analyzing surface. The resulting approach…

PhysicsPhotoemission spectroscopyAngle-resolved photoemission spectroscopyNanotechnology02 engineering and technologyElectronTime-dependent density functional theory021001 nanoscience & nanotechnologyARPES01 natural sciencesSettore FIS/03 - Fisica Della MateriaComputer Science ApplicationsComputational physicsX-ray photoelectron spectroscopyTDDFTIonization0103 physical sciencesMonolayerDensity functional theoryPhysical and Theoretical Chemistry010306 general physics0210 nano-technology
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First-principles modelling for time-resolved ARPES under different pump-probe conditions

2021

First-principles methods for time-resolved angular resolved photoelectron spectroscopy play a pivotal role in providing interpretation and microscopic understanding of the complex experimental data and in exploring novel observables or observation conditions that may be achieved in future experiments. Here we describe an efficient, reliable and scalable first-principles method for tr-ARPES based on time-dependent density functional theory including propagation and surface effects usually discarded in the widely used many-body techniques based on computing the non-equilibrium spectral function and discuss its application to a variety of pump–probe conditions. We identify four conditions, dep…

Time-resolved angular resolved photoelectron spectroscopy (ARPES)Condensed Matter - Materials ScienceRadiationMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences02 engineering and technologyTheoretical spectroscopy021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesAtomic and Molecular Physics and OpticsSettore FIS/03 - Fisica Della MateriaElectronic Optical and Magnetic MaterialsComputational methods for excitation in solids0103 physical sciencesTime-dependent density functional theoryPhysical and Theoretical Chemistry010306 general physics0210 nano-technologySpectroscopy
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Noninvasive Ventilation in Hypoxemic Patients: an Ongoing Soccer Game or a Lost One?

2017

[This corrects the article on p. 329 in vol. 45, PMID: 29359070.].

medicine.medical_specialtyEmergency Medicine; Anesthesiology and Pain Medicinebusiness.industryNon-Invasive Ventilation in Hypoxemic Respiratory Failure/ARDS GREGORETTI CORTEGIANI RAINERIGIARRJATANO VS. HILL GARPESTAD SCHUMAKER SPOLETINI03 medical and health sciences0302 clinical medicineAnesthesiology and Pain Medicine030228 respiratory systemEmergency medicinemedicineEmergency MedicineNoninvasive ventilation030212 general & internal medicineErratumbusiness
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