Results 51 to 60 of about 623,579 (384)

Magnetization switching by magnon-mediated spin torque through an antiferromagnetic insulator

open access: yesScience, 2019
Toward magnonic devices The field of magnonics aims to use spin waves (SWs) and their associated quasiparticles—magnons—as carriers of information. Compared with the movement of charge in conventional electronics, a major advantage of SWs is reduced ...
Yi Wang   +16 more
semanticscholar   +1 more source

Current-driven magnetization reversal and spin-wave excitations in Co /Cu /Co pillars [PDF]

open access: yesPhysical Review Letters, 1999
Using thin film pillars approximately 100 nm in diameter, containing two Co layers of different thicknesses separated by a Cu spacer, we examine the process by which the scattering from the ferromagnetic layers of spin-polarized currents flowing ...
J. Katine   +4 more
semanticscholar   +1 more source

Negative magnetic susceptibility and nonequivalent ensembles for the mean-field $\phi^4$ spin model

open access: yes, 2007
We calculate the thermodynamic entropy of the mean-field $\phi^4$ spin model in the microcanonical ensemble as a function of the energy and magnetization of the model.
Alessandro Campa   +37 more
core   +1 more source

Magnetic light [PDF]

open access: yesScientific Reports, 2012
Spherical silicon nanoparticles with sizes of a few hundreds of nanometers represent a unique optical system. According to theoretical predictions based on Mie theory they can exhibit strong magnetic resonances in the visible spectral range. The basic mechanism of excitation of such modes inside the nanoparticles is very similar to that of split-ring ...
Kuznetsov, AI   +4 more
openaire   +4 more sources

Measuring the iron oxide in Shubarkol deposit coal

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2019
Comprehensive development of mineral resources is one of the main objectives of a state. An important role for its solution is the import substitution of expensive сolombian coals used in the production of industrial silicon, with shubarkol coals having
А.Д. Маусымбаева   +5 more
doaj   +1 more source

PEROVSKITES AND OTHER FRAMEWORK STRUCTURE CRYSTALLINE MATERIALS (BOOK' FIRST PAGES AND PREFACE)

open access: yesMaterials and Devices, 2021
Perovskites are among the most famous materials due to their exceptional properties: they present nearly all existing types of interesting properties, in particular as ferroics or multiferroics, they may be insulators, (super)conductors, or ...
Saint-Grégoire P., Smirnov M.
doaj   +1 more source

Magnetization cusp singularities of frustrated Kondo necklace model

open access: yes, 2003
Magnetization processes of frustrated Kondo necklace model are studied by means of a density matrix renormalization group (DMRG) method and an elementary band theory based on a bond-operator formalism.
Chen Y.   +30 more
core   +1 more source

Magnetic Nanoparticle Sensors

open access: yesSensors, 2009
Many types of biosensors employ magnetic nanoparticles (diameter = 5–300 nm) or magnetic particles (diameter = 300–5,000 nm) which have been surface functionalized to recognize specific molecular targets.
Isaac Koh, Lee Josephson
doaj   +1 more source

Magnetoresistance of single-domain ferromagnetic particles

open access: yes, 2001
We have performed magnetoresistance measurements on single-domain, submicron elliptical Ni particles using nonmagnetic probes in a four probe geometry at liquid helium temperatures. In the smallest particles, the magnetoresistance shows sharp jumps which
Aumentado, J., Chandrasekhar, V.
core   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

open access: yesFEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli   +9 more
wiley   +1 more source

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