Results 61 to 70 of about 3,374 (191)

Geomagnetic Variability in a Post‐Superchron Geodynamo: Insights From the Deccan Traps

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Studying long‐term geomagnetic field behavior is crucial for understanding Earth's evolution, as field variability reflects processes in the planet's deep interior. One key question concerns the relationship between field strength and polarity reversal frequency, particularly during the Cretaceous Normal Superchron (CNS), a prolonged interval ...
K. E. Bristol   +6 more
wiley   +1 more source

Current Commutation in a Switched Lithium‐Ion Cell used in Cascaded Half‐Bridge Multilevel Inverters

open access: yesIET Power Electronics, 2021
In order to improve the efficiency of battery electric vehicles, the utilization of reconfigurable batteries and multilevel inverters based on low‐voltage Si MOSFETs gains growing attention. Focusing on the half‐bridge as basic switching unit, this paper
Christian Hanzl   +5 more
doaj   +1 more source

In situ magnetoresistance measurements of ferromagnetic nanocontacts in the Lorentz transmission electron microscope [PDF]

open access: yes, 2009
We report on in situ magnetoresistance measurements of a 30-nm-wide ferromagnetic nanocontact with simultaneous magnetic imaging in the Lorentz transmission electron microscope.
Back, Christian   +2 more
core   +1 more source

On Guided Remagnetization in Layered Anoheterostructures [PDF]

open access: yesAmerican Journal of Nano Research and Applications, 2019
Field-guided magnetic dynamics in magnetic multilayer nanostructures involves interconnection of the control field with localized spin states, which can occur directly or indirectly depending on the nature of the field and spin polarization. At the control electromagnetic field, this interconnection can be directly induced by the photon-induced spin ...
openaire   +1 more source

Change of Magnetic Characteristics of Magnetic Nanofilms and Control of a Spin Current by means of a Laser Radiation

open access: yesУспехи физики металлов, 2013
For the high-frequency components of spintronics, the high-speed systems to control magnetization of materials in the local microregions are required. Solving this problem, using conventional magnetic systems, is extremely difficult.
M. M. Krupa, I. V. Sharai
doaj   +1 more source

Connecting the timescales in picosecond remagnetization experiments [PDF]

open access: yesPhysical Review B, 2007
In femtosecond demagnetization experiments, one gains access to the elementary relaxation mechanisms of a magnetically ordered spin system on a time scale of 100 fs. Following these experiments, we report a combined micromagnetic and experimental study that connects the different regimes known from all-optical pump-probe experiments by employing a ...
Djordjevic, Marija   +1 more
openaire   +3 more sources

Exploring Potential Impact‐Induced Magnetic Signatures at the Tunguska Event Epicenter Using UAV‐Based Magnetometry

open access: yesEarth and Space Science
The Tunguska event of 1908 remains the most significant atmospheric explosion in recorded history, yet its geophysical effects, particularly its impact on Earth's magnetic field, remain uncertain.
M. Takáč   +4 more
doaj   +1 more source

Vortex states in patterned exchange biased NiO/Ni samples

open access: yes, 2009
We investigated the magnetization reversal of arrays of exchange biased NiO/Ni squares with superconducting quantum interference device magnetometry and micromagnetic simulations. The edges of the squares were 0.5, 1.5, and 3.0 $\mu$m long.
Hartmut Zabel   +4 more
core   +1 more source

Paleomagnetism of the Upper Ordovician Juniata Formation of the central Appalachians revisited again [PDF]

open access: yes, 1989
Two components of magnetization were isolated in the Upper Ordovician Juniata Formation sampled in the area of the Pennsylvania salient. The thermally distributed, reversed polarity B component was most likely acquired during Alleghenian deformation, and
Kent, Dennis V., Miller, John D.
core   +2 more sources

Stress remagnetization in pyrrhotite-calcite synthetic aggregates [PDF]

open access: yesGeophysical Journal International, 2001
SUMMARY Stress-induced remagnetization has been applied to multidomain pyrrhotite‐calcite synthetic aggregates in a triaxial rig. Experimental deformation used 150 MPa confining pressure, a constant strain rate of 10 x5 s x1 and applied differential stresses of up to 70 MPa.
P. Robion, G. J. Borradaile
openaire   +1 more source

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