Research paperExperimental CharacterizationTheoreticalSpectroscopy of Heat Transport and Violation of the Wiedemann–Franz Law in a GaAs Hydrodynamic Mesoscopic ChannelYu. A. Pusep, M. A. T. Patricio, V. A. Oliveira, M. M. Glazov et al.arXiv preprint·2026·10.1038/s41598-026-45858-7·arXiv:2604.12943AbstractThis paper reports the propagation of hot electrons in a GaAs hydrodynamic narrow channel, studied using micrometer-resolution photoluminescence thermometry. A temperature dependence of the Lorenz number was obtained, indicating a violation of the Wiedemann–Franz law. The important role of narrow constrictions in this violation was also demonstrated, and theoretical arguments are presented.Read more
High-mobility GaAs quantum-well mesoscopic channel hosting a two-dimensional electron gas.2 characterizations2 figuresExperimentalGaAsStudied MaterialExpand
Research paperExperimental CharacterizationTheoreticalSpectroscopy of Heat Transport and Violation of the Wiedemann–Franz Law in a GaAs Hydrodynamic Mesoscopic ChannelYu. A. Pusep, M. A. T. Patricio, V. A. Oliveira, M. M. Glazov et al.arXiv preprint·2026·10.1038/s41598-026-45858-7·arXiv:2604.12943AbstractThis paper reports the propagation of hot electrons in a GaAs hydrodynamic narrow channel, studied using micrometer-resolution photoluminescence thermometry. A temperature dependence of the Lorenz number was obtained, indicating a violation of the Wiedemann–Franz law. The important role of narrow constrictions in this violation was also demonstrated, and theoretical arguments are presented.Read more
High-mobility GaAs quantum-well mesoscopic channel hosting a two-dimensional electron gas.2 characterizations2 figuresExperimentalGaAsStudied MaterialExpand
Research paperExperimental CharacterizationTheoreticalSpectroscopy of Heat Transport and Violation of the Wiedemann–Franz Law in a GaAs Hydrodynamic Mesoscopic ChannelYu. A. Pusep, M. A. T. Patricio, V. A. Oliveira, M. M. Glazov et al.arXiv preprint·2026·10.1038/s41598-026-45858-7·arXiv:2604.12943AbstractThis paper reports the propagation of hot electrons in a GaAs hydrodynamic narrow channel, studied using micrometer-resolution photoluminescence thermometry. A temperature dependence of the Lorenz number was obtained, indicating a violation of the Wiedemann–Franz law. The important role of narrow constrictions in this violation was also demonstrated, and theoretical arguments are presented.Read more
High-mobility GaAs quantum-well mesoscopic channel hosting a two-dimensional electron gas.2 characterizations2 figuresExperimentalGaAsStudied MaterialExpand
Research paperExperimental CharacterizationTheoreticalSpectroscopy of Heat Transport and Violation of the Wiedemann–Franz Law in a GaAs Hydrodynamic Mesoscopic ChannelYu. A. Pusep, M. A. T. Patricio, V. A. Oliveira, M. M. Glazov et al.arXiv preprint·2026·10.1038/s41598-026-45858-7·arXiv:2604.12943AbstractThis paper reports the propagation of hot electrons in a GaAs hydrodynamic narrow channel, studied using micrometer-resolution photoluminescence thermometry. A temperature dependence of the Lorenz number was obtained, indicating a violation of the Wiedemann–Franz law. The important role of narrow constrictions in this violation was also demonstrated, and theoretical arguments are presented.Read more
High-mobility GaAs quantum-well mesoscopic channel hosting a two-dimensional electron gas.2 characterizations2 figuresExperimentalGaAsStudied MaterialExpand