magnetic properties of singledomain particles and the rock
(PDF) Magnetic properties of single-domain particles and ...
2005-9-24 · PDF | On Sep 24, 2005, L. L. Afremov and others published Magnetic properties of single-domain particles and the rock remanence | Find,
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Magnetic properties of single domain ferromagnetic
These include spin glasses, rocks, ferrofluids, magnetic recording tapes, permanent magnets, magnetotactic bacteria and other living organisms. It is hence beneficial to consider the magnetic properties of such particles which are small enough to be single domain and to contrast these properties for this wide variety of substances.
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Magnetic properties of single domain ferromagnetic
1983-11-1 · Journal of Magnetism and Magnetic Materials 39 (1983) 39-North-Holland Publishing Company INVITED PAPER MAGNETIC PROPERTIES OF SINGLE DOMAIN FERROMAGNETIC PARTICLES E.P. WOHLFARTH Department of Mathematics, Imperial College, London SW7 2BZ United Kingdom 39 Fine ferromagnetic particles occur in very many practical materials of
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Magnetic properties of dipolar interacting single-domain ...
1998-11-1 · PDF | The remanence and coercivity of an assembly of single-domain ferromagnetic particles are studied using the Monte Carlo simulation technique. The... | Find, read and cite all the research you ...
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Magnetic properties of interacting single domain Fe3O4 ...
The present study investigates magnetic properties of interacting 12.4 nm Fe3O4 spinel ferrite particles. Fe3O4 crystallizes in cubic structure with lattice parameters, a=0.839 (1) nm. Ultrafine ...
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Magnetic properties of dipolar interacting single-domain ...
The remanence and coercivity of an assembly of single-domain ferromagnetic particles are studied using the Monte Carlo simulation technique. The particles have random locations, possess random uniaxial anisotropy, and are coupled through dipolar interactions. The dependence of the magnetic properties on the packing density, the size of the particles, and
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Magnetic Properties of Single-Domain Iron and Iron
2009-8-11 · Air-stable, single-domain Fe and Fe-Co particles prepared by the reaction of the metal salts with aqueous borohydride have higher coercivities and axial ratios if prepared in a magnetic field. Oxide and boride impurities are indicated by elemental analyses and lowered saturation magnetizations. Studies of coercivities and magnetizations as a function of
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Bulk particle size distribution and magnetic properties of ...
2015-1-2 · Particle size separation based on gravitational settling followed by detailed rock magnetic measurements of the resulting fractionated samples is regarded as an effective approach to evaluating the relative contributions of pedogenic and detrital components to the bulk magnetic properties in the loess and paleosol sequences on the CLP [Zheng et ...
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Magnetic properties in an ash flow tuff with continuous ...
2011-7-2 · The magnetic remanence characteristics of magnetic particles are strongly size-dependent. Therefore, being able to constrain magnetic particle sizes and domain states through measurement of magnetic properties is important for determining a rock's capacity for carrying a stable remanence.
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Chapter 2. Magnetic Properties of Oceanic Basalts ...
1972-1-1 · CHAPTER 2 MAGNETIC PROPERTIES OF OCEANIC BASALTS DIAMAGNETISM AND PARAMAGNETISM If a substance acquires an intensity of magnetization J (c.g.s./cm3) in a field of H (gauss) the volume magnetic susceptibility k =.J/H, while the mass susceptibility x = J/pH where p (g/cm3) is the density.
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Magnetic properties of dipolar interacting single-domain ...
The remanence and coercivity of an assembly of single-domain ferromagnetic particles are studied using the Monte Carlo simulation technique. The particles have random locations, possess random uniaxial anisotropy, and are coupled through dipolar interactions. The dependence of the magnetic properties on the packing density, the size of the particles, and
Read More
Magnetic properties of dipolar interacting single-domain ...
2015-3-18 · The magnetic properties of small ferromagnetic particles with diameters typically about 10 nm are governed by two characteristic features. Namely, the single-domain magnetic structure and the enhanced coercivity. The former occurs be-cause the size of the system is smaller than the exchange correlation length and the latter is a consequence of ...
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Magnetic Properties of Single-Domain Iron and Iron
2009-8-11 · Air-stable, single-domain Fe and Fe-Co particles prepared by the reaction of the metal salts with aqueous borohydride have higher coercivities and axial ratios if prepared in a magnetic field. Oxide and boride impurities are indicated by elemental analyses and lowered saturation magnetizations. Studies of coercivities and magnetizations as a function of
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Magnetic properties of single-domain SrFe 12 O 19 ...
Nanosize particles of SrFe 12 O 19 have been synthesized by a citrate precursor technique with various Fe/Sr ratios of 12.0 to 9.0. X-ray diffraction (XRD) studies showed the formation of ultrafine, monophasic SrFe 12 O 19 particles with comparable unit cell parameters. Magnetic clusters were observed by scanning electron microscopy and Branauer-Emmett-Teller surface
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Magnetic properties of interacting single domain Fe3O4 ...
The present study investigates magnetic properties of interacting 12.4 nm Fe 3 O 4 spinel ferrite particles. Fe 3 O 4 crystallizes in cubic structure with lattice parameters, a=0.839(1) nm. Ultrafine nature of the materials were ascertained by the X-ray diffraction (XRD) line broadening and field dependent magnetic analysis.
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Some theoretical aspects of rock-magnetism: Advances in ...
2006-7-28 · The memoir is devoted to a brief theoretical study of the most typical magnetic properties of rocks. In particular §§ 3–16 are on ferrimagnetism, §§ 17–35 on single domain particles and §§ 36–57 on large multi-domain particles. Theoretical studies are made of the following aspects of the subject and compared with the experimental ...
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Bulk particle size distribution and magnetic properties of ...
2015-1-2 · Particle size separation based on gravitational settling followed by detailed rock magnetic measurements of the resulting fractionated samples is regarded as an effective approach to evaluating the relative contributions of pedogenic and detrital components to the bulk magnetic properties in the loess and paleosol sequences on the CLP [Zheng et ...
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Effect of maghemization on the magnetic properties of ...
2015-8-6 · The effect of maghemization on the magnetic properties of magnetite (Fe 3 O 4) grains in the pseudo-single-domain (PSD) size range is investigated as a function of annealing temperature.X-ray diffraction and transmission electron microscopy confirm the precursor grains as Fe 3 O 4 ranging from ∼150 to ∼250 nm in diameter, whilst Mössbauer spectrometry
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Effect of maghemization on the magnetic properties of ...
2017-8-14 · Effect of maghemization on the magnetic properties of nonstoichiometric pseudo-single-domain magnetite particles Trevor P. Almeida 1, Adrian R. Muxworthy , Takeshi Kasama2, Wyn Williams3, Christian Damsgaard2,4, Cathrine Frandsen4, Timothy J. Pennycook5,6,7, and Rafal E. Dunin-Borkowski8
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Chapter 2. Magnetic Properties of Oceanic Basalts ...
1972-1-1 · CHAPTER 2 MAGNETIC PROPERTIES OF OCEANIC BASALTS DIAMAGNETISM AND PARAMAGNETISM If a substance acquires an intensity of magnetization J (c.g.s./cm3) in a field of H (gauss) the volume magnetic susceptibility k =.J/H, while the mass susceptibility x = J/pH where p (g/cm3) is the density.
Read More
Magnetic properties of dipolar interacting single-domain ...
2015-3-18 · The magnetic properties of small ferromagnetic particles with diameters typically about 10 nm are governed by two characteristic features. Namely, the single-domain magnetic structure and the enhanced coercivity. The former occurs be-cause the size of the system is smaller than the exchange correlation length and the latter is a consequence of ...
Read More
Magnetic properties of single-domain SrFe 12 O 19 ...
Nanosize particles of SrFe 12 O 19 have been synthesized by a citrate precursor technique with various Fe/Sr ratios of 12.0 to 9.0. X-ray diffraction (XRD) studies showed the formation of ultrafine, monophasic SrFe 12 O 19 particles with comparable unit cell parameters. Magnetic clusters were observed by scanning electron microscopy and Branauer-Emmett-Teller surface
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Scanning electron microscopy and rock magnetic studies
2016-5-18 · single domain (SD)) magnetic particles which were not recovered by the magnetic separation procedure. Low-temperature experiments support the conclusion that the principal remanence carriers in the remagnetized carbonates are SD magnetite and that SP magnetite plays an important part in the unusual bulk magnetic properties of these rocks.
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Some theoretical aspects of rock-magnetism: Advances in ...
2006-7-28 · The memoir is devoted to a brief theoretical study of the most typical magnetic properties of rocks. In particular §§ 3–16 are on ferrimagnetism, §§ 17–35 on single domain particles and §§ 36–57 on large multi-domain particles. Theoretical studies are made of the following aspects of the subject and compared with the experimental ...
Read More
Magnetic Properties of Single-Domain Iron and Iron
Air-stable, single-domain Fe and Fe-Co particles prepared by the reaction of the metal salts with aqueous borohydride have higher coercivities and axial ratios if prepared in a magnetic field. Oxide and boride impurities are indicated by elemental analyses and lowered saturation magnetizations. Studies of coercivities and magnetizations as a function of temperature,
Read More
Angular Variation of the Magnetic Properties of Elongated ...
2009-8-12 · The demagnetization curves of oriented elongated single-domain (ESD) iron particles have been measured as a function of angle and packing fraction. The reduced coercive forces of dilute compacts show a maximum at an angle of about 50° associated with a buckling magnetization reversal. As the packing fraction is increased, particle magnetostatic interaction
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Magnetic properties of barium ferrite nanoparticles ...
We have successfully synthesized single-domain barium ferrite particles with uniaxial anisotropy. We have coated them with amorphous silica to reduce interparticle interactions so that the assembly of these particles behaves like a noninteracting randomly oriented uniaxial single-domain particle system, a prototype for the Stoner-Wohlfarth model. From the magnetic
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Magnetic properties of tidal flat sediments of the Yangtze ...
This paper considers the magnetic properties of tidal flat sediments of the Yangtze Estuary and its relationship with particle size. The results indicate that magnetite of multi-domain (MD)/pseudo-single domain (PSD) in size dominates the magnetic properties of the samples. In addition to detrital magnetite, spherical magnetic particles are found in the magnetically strongest
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27. ROCK MAGNETIC PROPERTIES, MAGNETIC
2006-11-30 · 27. ROCK MAGNETIC PROPERTIES, MAGNETIC MINERALOGY, AND MAGNETIC FABRIC OF ROCKS IN THE D'ENTRECASTEAUX COLLISION ZONE1 L.B. Stokking,2,3 D. Merrill,3 X. Zhao,4 and P. Roperch5 ABSTRACT During Leg 134, the influence of ridge collision and subduction on the structural evolution of island arcs was investigated by
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[2101.03993] Tuning the morphology and magnetic
2021-1-12 · Single-domain particles of SrFe8Al4O19 were prepared by thermal treatment at 1473 K of porous products of citrate-nitrate auto-combustion, and the influence of synthesis time on the particle morphology and magnetic properties was studied. The procedure allows to obtain SrFe8Al4O19 particles with mean diameters 100 - 460 nm, and their coercivity ranges from
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