803 citations · 1k across the 16 of their papers we have counts for
6 papers · 1 filter
Exciton lasing in carbon nanotubes below the population inversion threshold via phonon-mediated stimulated emission
Stefano Dal Forno, Marco Battiato
Excitonic optical transitions in carbon nanotubes (CNTs) have been extensively studied for at least two decades. However, exploiting these transitions to produce a lasing effect ha…
Interface reflectivity of a superdiffusive spin current in ultrafast demagnetization and THz emission
Wen-Tian Lu, Yawen Zhao, Marco Battiato +2
The spin- and energy-dependent interface reflectivity of a ferromagnetic (FM) film in contact with a nonmagnetic (NM) film is calculated using a first-principles transport method a…
Modification of spintronic terahertz emitter performance through defect engineering
Dennis M. Nenno, Laura Scheuer, Dominik Sokoluk +10
Spintronic ferromagnetic/non-magnetic heterostructures are novel sources for the generation of THz radiation based on spin-to-charge conversion in the layers. The key technological…
Impact of ultrafast transport on the high-energy states of a photoexcited topological insulator
F. Freyse, M. Battiato, L. V. Yashina +1
Ultrafast dynamics in three-dimensional topological insulators (TIs) opens new routes for increasing the speed of information transport up to frequencies thousand times faster than…
Laser-induced persistent photovoltage on the surface of a ternary topological insulator at room temperature
J. Sánchez-Barriga, M. Battiato, E. Golias +4
Using time- and angle-resolved photoemission, we investigate the ultrafast response of excited electrons in the ternary topological insulator (BiSb)Te to fs-i…
Sub-picosecond spin dynamics of excited states in the topological insulator BiTe
J. Sánchez-Barriga, M. Battiato, M. Krivenkov +9
Using time-, spin- and angle-resolved photoemission, we investigate the ultrafast spin dynamics of hot electrons on the surface of the topological insulator BiTe following…