Electron effective mass and mobility limits in degenerate perovskite stannateBaSnO3

Intrinsic electron mobility limits in b-Ga2O3

By systematically comparing experimental and theoretical transport properties, we identify the polar optical phonon scattering as the dominant mechanism limiting electron mobility in b–Ga2O3 to <200 cm/V s at 300 K for donor doping densities lower than !10 cm. Despite similar electron effective mass of b–Ga2O3 to GaN, the electron mobility is !10" lower because of a massive Fr€ohlich interactio...

Effective mass effect in attosecond electron transport

LAMIA KASMI,* MATTEO LUCCHINI, LUCA CASTIGLIONI, PAVEL KLIUIEV, JÜRG OSTERWALDER, MATTHIAS HENGSBERGER, LUKAS GALLMANN, PETER KRÜGER, AND URSULA KELLER Department of Physics, ETH Zurich, 8093 Zürich, Switzerland Department of Physics, University of Zurich, 8057 Zürich, Switzerland Institute of Applied Physics, University of Bern, 3012 Bern, Switzerland Graduate School of Science and Engineering...

Electroabsorption Spectroscopy Measurements of the Exciton Binding Energy, Electron−Hole Reduced Effective Mass, and Band Gap in the Perovskite CH3NH3PbI3

We use electroabsorption (EA) spectroscopy to measure the exciton binding energy (EB), electron−hole reduced effective mass (μ), and one-electron band gap (Eg) at the fundamental absorption edge of the hybrid organic− inorganic perovskite CH3NH3PbI3 in its tetragonal phase at 300 K. By studying the second-harmonic EA spectra at the fundamental absorption edge we establish that the roomtemperatu...

Effective mass of electrons and holes in bilayer graphene: Electron-hole asymmetryand electron-electron interaction

Electron effective mass and nonparabolicity in Ga0.47In0.53As/InP quantum wells.

The in-plane effective electron mass (m i) in narrow Ga0.47In0.53As/InP quantum wells is strongly dependent on the quantization energy. Cyclotron resonance in a series of quantum wells with well widths down to 15 Å reveals a mass enhancement of up to 50% (m i50.065m0) over the bulk value of Ga0.47In0.53As. This effect is caused by the nonparabolicity of the conduction band and wave function pen...