Results 1 to 10 of about 34,359 (225)

Multiscale estimation of the field-aligned current density [PDF]

Annales Geophysicae, 2019
Field-aligned currents (FACs) in the magnetosphere–ionosphere (M–I) system exhibit a range of spatial and temporal scales that are linked to key dynamic coupling processes. To disentangle the scale dependence in magnetic field signatures of auroral FACs
C. Bunescu, C. Bunescu, J. Vogt, O. Marghitu, A. Blagau   +4 more
doaj   +1 more source

Transition from contractional to transpressive tectonics: evidence from the Feira Nova Region, Rio Capibaribe Domain, Borborema Province, NE Brazil

Brazilian Journal of Geology, 2021
Differences in tectonic style and kinematics in orogenic belts can result from either multiphase or progressive deformation. In eastern Borborema Province, a regional shallow dipping foliation is multiply folded and crosscut by transcurrent shear zones ...
Valdielly Larisse Silva, Sérgio Pacheco Neves   +1 more
doaj   +1 more source

Bayesian-Based Hybrid Method for Rapid Optimization of NV Center Sensors

Sensors, 2023
NV centers are among the most promising platforms in the field of quantum sensing. Magnetometry based on NV centers, especially, has achieved concrete development in areas of biomedicine and medical diagnostics.
Jiazhao Tian, Ressa S. Said, Fedor Jelezko, Jianming Cai, Liantuan Xiao   +4 more
doaj   +1 more source

The Iron Age Necropolis of El Toro (Alcubillas, Ciudad Real-Spain)—Combination of Archaeological and Geophysical Techniques with Ground Penetrating Radar in the Area around the Jabalón River

Land, 2022
The necropolis of El Toro is characterised as a space of prolonged use in northern Oretania. Several important archaeological finds were made in 1975 and 2012, leading to the excavation of six test pits in 2017.
Francisco Javier Catalán González, Luis Benítez de Lugo Enrich, José Antonio Ruiz Gil, Isabel Rondán Sevilla   +3 more
doaj   +1 more source

Structural and Magnetic Properties Study of Fe₂O₃/NiO/Ni₂FeO₄ Nanocomposites

Crystals, 2021
In the current work, the nanocomposites that consist chiefly of three components—α-Fe2O3, NiO and Ni2FeO4, in two different ratios 2:2:1 (FNN-221) and 2:1:1 (FNN-211), respectively—were produced.
Zakia Alhashem, Chawki Awada, Faheem Ahmed, Ashraf H. Farha   +3 more
doaj   +1 more source

Levitated Micromagnets in Superconducting Traps: A New Platform for Tabletop Fundamental Physics Experiments

Entropy, 2022
Magnetically levitated microparticles have been proposed as mechanical sensors with extreme sensitivity. In particular, micromagnets levitated above a superconductor can achieve very low levels of dissipation and thermal noise.
Andrea Vinante, Chris Timberlake, Hendrik Ulbricht   +2 more
doaj   +1 more source

Optically pumped magnetometer with high spatial resolution magnetic guide for the detection of magnetic droplets in a microfluidic channel

New Journal of Physics, 2023
Quantum sensors provide unprecedented magnetic field detection sensitivities, enabling these to extend the common magnetometry range of applications and environments of operation.
Marc Jofre, Jordi Romeu, Luis Jofre-Roca
doaj   +1 more source

Composite-pulse magnetometry with a solid-state quantum sensor [PDF]

, 2012
The sensitivity of quantum magnetometers is challenged by control errors and, especially in the solid-state, by their short coherence times. Refocusing techniques can overcome these limitations and improve the sensitivity to periodic fields, but they ...
A Dréau, A Jarmola, A Laraoui, CL Degen, DJ Wineland, DX Keller, EL Hahn, G Balasubramanian, G Balasubramanian, G Goldstein, G Waldherr, GJ Augustine, H Fedder, I Solomon, J-M Cai, JM Taylor, JR Klauder, JR Maze, L Childress, LP McGuinness, M Hirose, MH Levitt, MS Grinolds, N Kosugi, P Cappellaro, P Neumann, RS Schoenfeld, S Meiboom, TM Babinec, V Jacques, X Xu   +30 more
core   +2 more sources

OVERHAUSER VECTOR MAGNETOMETER POS-4: THE RESULTS OF CONTINUOUS MEASUREMENTS DURING 2015-2016 AT GEOPHYSICAL OBSERVATORY «PARATUNKA»OF IKIR FEB RAS, KAMCHATKA, RUSSIA

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016
The summary results of the analysis of the measurements by Overhauser vector magnetometer POS-4 during about 1.5 years are presented.
Khomutov, S.Y., Sapunov, V.A., Denisov, A.Y., Savelyev, D.V., Babakhanov, I.Y.   +4 more
doaj   +1 more source

How to build a magnetometer with thermal atomic vapor: a tutorial

New Journal of Physics, 2023
This article is designed as a step-by-step guide to optically pumped magnetometers based on alkali atomic vapor cells. We begin with a general introduction to atomic magneto-optical response, as well as expected magnetometer performance merits and how ...
Anne Fabricant, Irina Novikova, Georg Bison   +2 more
doaj   +1 more source