#Magnetization

International Journal of Extreme Manufacturing

4 months ago

#PhD #position at Radboud University buff.ly/fU4jrEt #Ultrafast #dynamics of phonon-driven #magnetization reversal at #THz frequencies

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@intjextremmanuf.bsky.social

4 months ago

A cost-effective heat-assisted in-situ #molding method to fabricate magnetically driven #softrobots with #3D programmable domains, achieving twice the #magnetization strength & enabling versatile designs for adaptive #RoboticApplications.

#OpenAccess #IJEM: doi.org/10.1088/2631...

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Peter Müller-Buschbaum

@muellerb.bsky.social

5 months ago

Origin of Wasp-Waisted Shape of Magnetization Hysteresis Loops in CoxFe3–xO4 Nanoassemblies for Magnetic Hyperthermia The origin of double-step magnetization reversal processes, so-called wasp-waist magnetization hysteresis loops, in single magnetic phase 3D cobalt ferrite nanoassemblies is still poorly understood. So far, this behavior has been mainly attributed to the coexistence of hard–soft magnetic phases and spin canting in nanoparticles. Here, we demonstrate the wasp-waisted magnetization loops in single-phase flower-like Co0.83Fe2.17O4 nanoassemblies that were synthesized by modifying the ligand chemistry. Combining magnetization hysteresis loops at different concentrations, degrees of dipolar interactions, and temperatures, energy-dispersive X-ray and in-field Mössbauer spectroscopy, and small-angle neutron scattering, we propose that a combination of a strong dipolar field and spin-disordered nanobuilding blocks, leading to a soft magnetic phase at the grain boundaries, accounts for this anomalous and abrupt drop in magnetization in nanoassemblies. The nanoassemblies have a porous nanostructure with nanogaps between their nanobuilding blocks, as revealed from electron microscopy investigations. Small-angle neutron-scattering studies reveal spin disorder at the surfaces and interfaces of the nanobuilding blocks. The strong dipolar field at the ensemble level is achieved only when particle colloidal suspensions are dried from high particle concentrations, indicating the concentration-dependent nature of this behavior. Single-core nanoparticles with comparable chemical composition, effective size, coercive field, and magnetization, but with a coherent crystal structure, do not reveal this peculiar behavior even at the highest concentrations. Our study introduces organic capping ligands as a means to tune magnetization processes in nanoparticles for applications in magnetic hyperthermia, an unexplored role for organic ligands beyond giving nanoparticles colloidal stability.

Collaborator Enja Laureen Rösch et al. in ACS Applied Nano Materials @ACS_ANM : "#Origin of #Wasp-#Waisted Shape of #Magnetization #Hysteresis Loops in #CoxFe3−xO4 #Nanoassemblies for #Magnetic #Hyperthermia":

ACS Appl. Nano Mater. 2025, 8, 37, 18056–18069

doi.org/10.1021/acsa...

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5 months ago

[2024 OPEN ACCESS]
Temperature- and magnetic field-induced magnetic structural changes in the Fe3Si/FeSi2 superlattice
2024 Appl. Phys. Express 17 035002

iopscience.iop.org/article/10.3...

#APEX
#Physics
#Openaccess
#superlattice
#polarized
#neutron
#reflectivity
#magnetic
#magnetization

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5 months ago

[2024 OPEN ACCESS]
Field-free magnetization switching with full scale in Pt/Tm3Fe5O12 bilayer on vicinal substrate
2024 Appl. Phys. Express 17 033003

iopscience.iop.org/article/10.3...

#APEX
#Physics
#Openaccess
#spin
#orbit
#torque
#magnetic
#anisotropy
#magnetization
#switching
#vicinal

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5 months ago

Latest Article
Reduction of current for magnetization switching in a nanomagnet with perpendicular anisotropy by spin-splitter torque
2025 Appl. Phys. Express 18 093002

iopscience.iop.org/article/10.3...

#APEX
#OpenAccess
#Physics
#magnetization
#switching
#spin
#splitter
#torque
#macrospin
#MRAM

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6 months ago

[2024 OPEN ACCESS]
Wide-field imaging of the magnetization process in soft magnetic-thin film using diamond quantum sensors
2024 Appl. Phys. Express 17 017002

iopscience.iop.org/article/10.3...

#APEX
#OpenAccess
#Physics
#magnetization
#diamond
#quantum

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Things that are gone now

@gone-things.bsky.social

7 months ago

In classical electromagnetism, #magnetization was the vector field that expressed the density of permanent or induced magnetic dipole moments in a magnetic material.

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7 months ago

[Spotlights 2023]
Electrical detection and current control of all-optical magnetization switching in GdFeCo ferrimagnetic alloy thin film
2023 Jpn. J. Appl. Phys. 62 SB1014

iopscience.iop.org/article/10.3...

#JJAP
#physics
#optical
#magnetization
#switching
#spintronics
#ferrimagnetic
#anomalous

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7 months ago

[Open Access]
Large enhancement of magnetic damping in half-metallic Co2MnSi Heusler alloy thin films with heavy metal Pt layer observed by the all-optical method
2023 62 SB1003

iopscience.iop.org/article/10.3...

#JJAP
#physics
#Openaccess
#Heusler
#optical
#Magnetization
#dynamics
#spin

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8 months ago

#software mag2exp buff.ly/caTgddJ #Python package for #virtual #experiments on input #magnetization field. #magnetometry, #ferromagnetic #resonance, #microscopy (#Lorentz #LTEM, X-ray #holography, magnetic force microscopy), #neutron scattering. #simulation #computation #magnetism #MFM #SANS #FMR

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Job market - EMA - Postdoc: Magnetization Dynamics [ All offers ]

9 months ago

#postdoc #position at Diamond Light Source buff.ly/Nj5XWyQ #Magnetization #Dynamics. #synchrotron #research

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Things that are gone now

@gone-things.bsky.social

9 months ago

In classical electromagnetism, #magnetization was the vector field that expressed the density of permanent or induced magnetic dipole moments in a magnetic material.

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The Epiphany

@weareepiphany.bsky.social

9 months ago

The final repaint is the pieces to have a winged hive tyrant. I love the fade pattern. The torso and claws are the same as my other tyrant. The wings can come off with magnets due to a pin adding stability.
#warhammer #miniature #minipainting #ttrpg #wargame #tyranid #hivetyrant #magnetization

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The Epiphany

@weareepiphany.bsky.social

9 months ago

The alternative tail for the Biovore turns it into the Pyrovore, an anti-infantry bug. Honestly I prefer the Biovore but having the option is good. I like how the fleshy bits turned out with the gloss varnish.
#warhammer #miniature #minipainting #ttrpg #wargame #tyranid #magnetization #pyrovore

5 0 0 0

The Epiphany

@weareepiphany.bsky.social

9 months ago

The final full unit for now is the Exocrine/Haruspex. Solid tank for the army. Magnetization wasn’t too bad. Not gonna lie, I like the look of the Haruspex more than the Exocrine, despite it being weaker.
#warhammer #miniature #minipainting #ttrpg #wargame #tyranid #exocrine #haruspex #magnetization

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