0000000000587050

AUTHOR

Joan Manel Hernàndez

showing 3 related works from this author

Coexistence of ferro- and antiferromagnetic interactions in a metal-organic radical-based (6,3)-helical network with large channels.

2005

A metal–organic open-framework with an unprecedented (6,3)-helical topology, large channels and mixed ferro- and antiferromagnetic interactions has been synthesized using a three-connecting tricarboxylic polychlorotriphenylmethyl radical and Co(II) ions. Lloret Pastor, Francisco, Francisco.Lloret@uv.es

UNESCO::QUÍMICA::Química inorgánicaChemistryUNESCO::QUÍMICAMetals and AlloysMetal-organicMineralogyGeneral Chemistry:QUÍMICA::Química inorgánica [UNESCO]:QUÍMICA [UNESCO]CatalysisSintetitzationFerro and antiferromagnetic ; Metal-organic ; Coexistence ; Tricarboxylic polychlorotriphenylmethyl radical ; SintetitzationSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsIonChemical physicsMaterials ChemistryCeramics and CompositesAntiferromagnetismCondensed Matter::Strongly Correlated ElectronsTricarboxylic polychlorotriphenylmethyl radicalFerro and antiferromagneticTopology (chemistry)CoexistenceChemical communications (Cambridge, England)
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Emergence of the stripe-domain phase in patterned permalloy films

2016

The occurrence of stripe domains in ferromagnetic Permalloy (Py=Fe$_{20}$Ni$_{80}$) is a well known phenomenon which has been extensively observed and characterized. This peculiar magnetic configuration appears only in films with a thickness above a critical value ($d_{cr}$), which is strongly determined by the sputtering conditions (i.e. deposition rate, temperature, magnetic field). So far, $d_{cr}$ has usually been presented as the boundary between the homogeneous (H) and stripe-domains (SD) regime, respectively below and above $d_{cr}$. In this work we study the transition from the H to the SD regime in thin films and microstructured bridges of Py with different thicknesses. We find the…

PermalloyMaterials scienceMagnetoresistanceFerromagnetismeFOS: Physical sciences02 engineering and technology01 natural sciencesCondensed Matter::Materials ScienceSputteringPhase (matter)Mesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesMagnetoresistènciaThin filmFilmsMagnetic domains010302 applied physicsCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsMagnetoresistanceCoercivity021001 nanoscience & nanotechnologyPermalloyMagnetic fieldFerromagnetismFerromagnetism0210 nano-technologyMagnetic domains; Permalloy; Films
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Direct imaging of delayed magneto-dynamic modes induced by surface acoustic waves.

2017

The magnetoelastic effect—the change of magnetic properties caused by the elastic deformation of a magnetic material—has been proposed as an alternative approach to magnetic fields for the low-power control of magnetization states of nanoelements since it avoids charge currents, which entail ohmic losses. Here, we have studied the effect of dynamic strain accompanying a surface acoustic wave on magnetic nanostructures in thermal equilibrium. We have developed an experimental technique based on stroboscopic X-ray microscopy that provides a pathway to the quantitative study of strain waves and magnetization at the nanoscale. We have simultaneously imaged the evolution of both strain and magne…

Materials scienceMagnetic domainScienceGeneral Physics and Astronomy02 engineering and technology01 natural sciencesGeneral Biochemistry Genetics and Molecular BiologyArticleMagnetizationCondensed Matter::Materials ScienceMagneticsOpticsNickel0103 physical sciencesotorhinolaryngologic diseases010306 general physicslcsh:ScienceMagnetoMagnetization dynamicsMultidisciplinaryCondensed matter physicsbusiness.industryCircular DichroismX-RaysQSurface acoustic waveMagnetostrictionGeneral ChemistryAcoustic wave021001 nanoscience & nanotechnologyequipment and suppliesMagnetic fieldNanostructuresMicroscopy ElectronSoundlcsh:Q0210 nano-technologybusinesshuman activitiesNature communications
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