Results 41 to 50 of about 51,717 (288)

Quasi-geostrophic modes in the Earth's fluid core with an outer stably stratified layer [PDF]

, 2015
Seismic waves sensitive to the outermost part of the Earth's liquid core seem to be affected by a stably stratified layer at the core-mantle boundary.
Schaeffer, Nathanaël, Vidal, Jérémie
core   +5 more sources

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source

Obtaining High‐Resolution Magnetic Records From Speleothems Using Magnetic Microscopy

Geochemistry, Geophysics, Geosystems
Speleothems are mineral deposits capable of recording detrital and/or chemical remanent magnetization at annual timescales. They can offer high‐resolution paleomagnetic records of short‐term variations in Earth's magnetic field, crucial for understanding
Cauê S. Borlina, Eduardo A. Lima, Joshua M. Feinberg, Plinio Jaqueto, Ioan Lascu, Ricardo I. F. Trindade, Eric Font, Elisa M. Sánchez‐Moreno, Luca Antonio Dimuccio, Yusuke Yokoyama, Josep M. Parés, Benjamin P. Weiss, Jeffrey A. Dorale   +12 more
doaj   +1 more source

Satellite Geomagnetism [PDF]

, 2012
Observations of Earth's magnetic field from space began more than 50 years ago. A continuous monitoring of the field using low Earth orbit (LEO) satellites, however, started only in 1999, and three satellites have taken high-precision measurements of ...
Olsen, Nils, Stolle, Claudia
core   +1 more source

Coexisting Rashba/Dresselhaus Spin Splitting in Solution‐Processed Bournonite Films Using Circular Photogalvanic Effect

Advanced Functional Materials, EarlyView.
Circular photogalvanic effect measurements and first‐principles calculations reveal spin‐splitting states in solution‐processed bournonite films (CuPbSbS3) due to structural and bulk inversion asymmetry. The results provide experimental confirmation of coexisting Rashba and Dresselhaus spin‐splitting states in this non‐centrosymmetric chalcogenide ...
Aeron McConnell, Sasa Wang, Andrew Grieder, Yuan Ping, David B. Mitzi, Dali Sun   +5 more
wiley   +1 more source

Field in the frame: fossilised Ediacaran faunal diversity

Communications Earth & Environment
Fluctuations in the Earth’s magnetic field across time may have had wide-ranging impacts on ecosystems. Dr Tarduno and colleagues used paleomagnetic data from silicate crystals to examine the Ediacaran period. Crystal data indicated that Earth’s magnetic
Alice Drinkwater
doaj   +1 more source

On the Dynamics of Charged Particle Close to Equatorial Plane of Earth in the Störmer Problem: Cylindrical Case of Dipole Magnetic Field [PDF]

Journal of Applied and Computational Mechanics
The classical Störmer problem (dynamics of charged particle in Earth’s magnetic field) has been fully considered hereby since the first part of such problem has been successfully solved recently for the case of dipole magnetic field associated with the ...
Sergey Ershkov
doaj   +1 more source

Trajectories of charged particles trapped in Earth's magnetic field

, 2011
I outline the theory of relativistic charged-particle motion in the magnetosphere in a way suitable for undergraduate courses. I discuss particle and guiding center motion, derive the three adiabatic invariants associated with them, and present particle ...
Garcia A. L., Griffiths D. J., Hughes W. J., Kivelson M. G., M. Kaan Öztürk, Northrop T. G., Press W. H., Sharma A. S., Wolf R. A.   +8 more
core   +1 more source

Modelling the Earth's magnetic field

American Journal of Physics, 2022
The Earth's magnetic field can be decomposed into spherical harmonics, and the exact coefficients of the decomposition can be determined through a few measurements of its value at different locations. Using measurements from a magnetometer on board the International Space Station, we computed the multipolar moments of an expansion in spherical ...
Sá, Nuno Barros e, Faria, Lourenço, Alves, Bernardo, Cymbron, Miguel   +3 more
openaire   +2 more sources

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source