Articles with "blocking temperature" as a keyword



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The Blocking Temperature of an Amorphous Alternate A and B Layers Cylindrical Nanowire

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Published in 2019 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-019-5009-4

Abstract: The blocking temperature of an amorphous cylindrical nanowire of length L and radius R is studied within the framework of Monte Carlo simulation based on Metropolis algorithm. The nanowire is formed by alternate layers of… read more here.

Keywords: cylindrical nanowire; temperature amorphous; alternate layers; temperature ... See more keywords
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Modeling of the blocking temperature of a system of core/shell nanoparticles

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Published in 2020 at "Chinese Journal of Physics"

DOI: 10.1016/j.cjph.2020.06.022

Abstract: Abstract A theoretical study was conducted on the size dependence of the blocking temperature Tb of a system of interacting core/shell nanoparticles. A method for estimating the blocking temperature of interacting core/shell nanoparticles is presented,… read more here.

Keywords: core shell; temperature; blocking temperature; shell nanoparticles ... See more keywords

Exchange bias in tetragonal-like BiFeO 3 /Sr 2 FeMoO 6 bilayer

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Published in 2018 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2018.05.063

Abstract: Abstract Exchange bias in the bilayer of half-metallic La0.7Sr0.3MnO3 and multiferroic BiFeO3 has been applied for the electric field control of magnetization, which is strongly limited by the much low blocking temperature of about 100 K… read more here.

Keywords: blocking temperature; exchange bias; tetragonal like; exchange ... See more keywords
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Impact of blocking temperature distribution on the thermal behavior of MnIr and MnPt magnetoresistive stacks

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Published in 2019 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2019.01.007

Abstract: Abstract Ensuring a reliable reference in magnetoresistive devices requires robust exchange biased antiferromagnetic/ferromagnetic (AF/FM) bilayers with strong resilience to high temperatures. In this work, we studied the thermal stability of MnPt and MnIr by investigating… read more here.

Keywords: exchange; thermal behavior; temperature; distribution ... See more keywords
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High performance single-molecule magnets, Orbach or Raman relaxation suppression?

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Published in 2020 at "Inorganic chemistry frontiers"

DOI: 10.1039/d0qi00487a

Abstract: The current figure of merit to evaluate Single Molecule Magnet (SMM) performance is the blocking temperature (TB). The best SMMs show TB values close to liquid nitrogen boiling point (77 K) while their Orbach effective… read more here.

Keywords: blocking temperature; single molecule; high performance; performance ... See more keywords
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Bioassay using blocking temperature: Interparticle interactions between biofunctionalized magnetic nanoparticles conjugated with biotargets

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Published in 2017 at "Applied Physics Letters"

DOI: 10.1063/1.4979142

Abstract: This paper reports a bioassay of alpha-fetoprotein (AFP) concentration achieved via the measurement of blocking temperature (TB). Biofunctionalized magnetic nanoparticles (BMNs) consisting of anti-alpha-fetoprotein coated onto dextran-coated magnetic nanoparticles composed of Fe3O4 were prepared and… read more here.

Keywords: interparticle interactions; biofunctionalized magnetic; magnetic nanoparticles; blocking temperature ... See more keywords
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Understanding magnetic relaxation in single-ion magnets with high blocking temperature

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.174402

Abstract: The recent discovery of single-ion magnets with magnetic hysteresis above liquid-nitrogen temperatures placed these compounds among the best candidates to realize high-density storage devices. Starting from a prototypical dysprosocenium molecule, showing hysteresis up to 60… read more here.

Keywords: high blocking; relaxation; single ion; ion magnets ... See more keywords
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High exchange-bias blocking temperature in an ultrathin amorphous antiferromagnet system

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Published in 2021 at "Physical Review B"

DOI: 10.1103/physrevb.104.l100401

Abstract: We experimentally observed an ultrahigh blocking temperature, above 600 K, in an exchange-biased Fe/FeO bilayer after field annealing at 773 K. This is far above the 198 K N\'eel temperature of bulk FeO. By comparing… read more here.

Keywords: exchange bias; temperature; blocking temperature; ultrathin amorphous ... See more keywords
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Effect of Dipole Interactions on Blocking Temperature and Relaxation Dynamics of Superparamagnetic Iron-Oxide (Fe3O4) Nanoparticle Systems

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Published in 2023 at "Materials"

DOI: 10.3390/ma16020496

Abstract: The effects of dipole interactions on magnetic nanoparticle magnetization and relaxation dynamics were investigated using five nanoparticle (NP) systems with different surfactants, carrier liquids, size distributions, inter-particle spacing, and NP confinement. Dipole interactions were found… read more here.

Keywords: nanoparticle; nanoparticle systems; relaxation; blocking temperature ... See more keywords
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Increasing Magnetic Anisotropy in Bimetallic Nanoislands Grown on fcc(111) Metal Surfaces

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Published in 2022 at "Nanomaterials"

DOI: 10.3390/nano12030518

Abstract: The magnetic properties and the atomic scale morphology of bimetallic two-dimensional nanoislands, epitaxially grown on fcc(111) metal surfaces, have been studied by means of Magneto-Optical Kerr Effect and Scanning Tunneling Microscopy. We investigate the effect… read more here.

Keywords: grown fcc; 111 metal; metal surfaces; fcc 111 ... See more keywords