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Phonon Inverse Faraday Effect from Electron-Phonon Coupling.
Phys Rev Lett
December 2024
Chalmers University of Technology, Department of Physics, 412 96 Göteborg, Sweden.
The phonon inverse Faraday effect describes the emergence of a dc magnetization due to circularly polarized phonons. In this work we present a microscopic formalism for the phonon inverse Faraday effect. The formalism is based on time-dependent second order perturbation theory and electron phonon coupling.
View Article and Find Full Text PDFCoulomb Drag in Graphene/h-BN/Graphene Moiré Heterostructures.
Phys Rev Lett
November 2024
Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
We report on the observation of Coulomb drag between graphene-hexagonal boron nitride (h-BN) moiré heterostructure with a moiré wavelength of ∼14 nm and an intrinsic graphene with a lattice constant of ∼0.25 nm. By tuning carrier densities of each graphene layer independently, we find that charge carriers in moiré minibands, i.
View Article and Find Full Text PDFRelative muscular effort in the older adults during the sit-to-stand task: Monitoring neuromuscular reserve and movement limitations.
Clin Biomech (Bristol)
December 2024
Department of Physical Therapy - Program in Exercise and Rehabilitation Science, Marquette University, Milwaukee, WI, USA.
Background: Due to lower maximum strength, older adults purportedly need to exert greater muscular effort to stand up from a chair. This study investigated joint-specific muscular effort during a sit-to-stand by calculating relative-muscular-effort and investigating differences between healthy older and young adults.
Methods: Fifteen older (age: 69.
Relationship between Capillary Wettability, Mass, and Momentum Transfer in Nanoconfined Water: The Case of Water in Nanoslits of Graphite and Hexagonal Boron Nitride.
ACS Appl Mater Interfaces
October 2024
Department of Chemistry, University of Manchester, Oxford Road, M13 9PL Manchester, U.K.
The flow of water confined in nanosize capillaries is subject of intense research due to its relevance in the fabrication of nanofluidic devices and in the development of theories for fluid transport in porous media. Here, using molecular dynamics simulations carried out on 2D capillaries made up of graphite, hexagonal boron nitride (hBN) and a mix of the two, and of sizes from subnanometer to few nanometers, we investigate the relationship between the wettability of the wall capillary, the water diffusion, and its flow rate. We find that the water diffusion is decoupled from its flow properties as the former is not affected either by the height or chemistry of the capillary (except for the subnanometer slits), while the latter is dependent on both.
View Article and Find Full Text PDFHeat transfer and friction factor analysis for tomato puree flowing in a concentric-tube heat exchanger.
J Food Sci
November 2024
Posgrado en Ciencia y Tecnología de Alimentos, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Mexico.
The heat and momentum transfer of tomato puree through a concentric-tube heat exchanger over a range of generalized Reynolds number (0.05 < Re < 66.5) was experimentally and numerically analyzed.
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