The interplay between single particle anisotropy and interparticle interactions in ensembles of magnetic nanoparticles

G Muscas, G Concas, S Laureti, AM Testa… - Physical Chemistry …, 2018 - pubs.rsc.org
This paper aims to analyze the competition of single particle anisotropy and interparticle
interactions in nanoparticle ensembles using a random anisotropy model. The model is first …

Room-temperature ferromagnetism and extraordinary hall effect in nanostructured Q-carbon: implications for potential spintronic devices

A Bhaumik, S Nori, R Sachan, S Gupta… - ACS Applied Nano …, 2018 - ACS Publications
We report extraordinary Hall effect and room-temperature ferromagnetism in undoped Q-
carbon, which is formed by nanosecond pulsed laser melting and subsequent quenching …

The effect of dipole-dipole interactions on coercivity, anisotropy constant, and blocking temperature of MnFe2O4 nanoparticles

B Aslibeiki, P Kameli, H Salamati - Journal of Applied Physics, 2016 - pubs.aip.org
Superparamagnetic manganese ferrite nanoparticles with mean size of< D>= 6.5 (±1.5) nm
were synthesized through a solvothermal method using Tri-ethylene glycol as a solvent. The …

Hysteresis effects in magnetic nanoparticles: A simplified rate-equation approach

P Allia, G Barrera, P Tiberto - Journal of Magnetism and Magnetic Materials, 2020 - Elsevier
Hysteretic properties of an assembly of uniaxial magnetic nanoparticles described as double
well systems (DWS) with either collinear or randomly distributed easy axes are studied by …

Room-temperature ferromagnetism in epitaxial titanium nitride thin films

S Gupta, A Moatti, A Bhaumik, R Sachan, J Narayan - Acta Materialia, 2019 - Elsevier
Localized charge injection by formation of vacancies provides an attractive platform for the
development of multifunctional nanomaterials with direct implications in spintronics …

Superferromagnetism and coercivity in Co-Al2O3 granular films with perpendicular anisotropy

AA Timopheev, I Bdikin, AF Lozenko… - Journal of Applied …, 2012 - pubs.aip.org
Magnetic properties of nano-granular Co 0.55–(Al 2 O 3) 0.45 films have been studied by
vibrating sample magnetometry, ferromagnetic resonance, and magnetic force microscopy …

Anomalous Behavior of the Tunneling Magnetoresistance in (CoFeB)x(LiNbO3)100 −x/Si Nanocomposite Film Structures Below the Percolation Threshold …

SN Nikolaev, KY Chernoglazov, AV Emelyanov… - JETP Letters, 2023 - Springer
A strongly nonmonotonic temperature dependence of the magnetoresistance in (CoFeB) x
(LiNbO y) 100–x film nanocomposites (x≈ 40–48 at%) is observed in the temperature range …

Multilayer nanogranular films (Co40Fe40B20) 50 (SiO2) 50/α-Si: H and (Co40Fe40B20) 50 (SiO2) 50/SiO2: magnetic properties

SV Komogortsev, EA Denisova, RS Iskhakov… - Journal of Applied …, 2013 - pubs.aip.org
Magnetic properties of multilayers, consisting of nanogranular (Co 40 Fe 40 B 20) 50 (SiO 2)
50 layers as thin as magnetic granule diameter alternating the α-Si: H or SiO 2 layers and …

Magnetic anisotropy in multilayer nanogranular films (Co40Fe40B20) 50 (SiO2) 50/α-Si: H

EA Denisova, SV Komogortsev, RS Iskhakov… - Journal of Magnetism …, 2017 - Elsevier
Macroscopic and local magnetic anisotropy of [CoFeB-SiO 2/α-Si: H] 60 multilayer films was
studied in comparison with that for the thick CoFeB-SiO 2 granular films. The volume fraction …

Competition of the Coulomb and hop**-based exchange interactions in granular magnets

OG Udalov, IS Beloborodov - Physical Review B, 2017 - APS
We study exchange coupling due to the interelectron Coulomb interaction between two
ferromagnetic grains embedded into an insulating matrix. This contribution to the exchange …