Results 21 to 30 of about 8,951 (266)

CoFe2O4 bulk, nanoparticles and layer: A comparison of structural, magnetic, and optical properties [PDF]

open access: yesProgress in Physics of Applied Materials, 2022
The structural characteristics of materials change with the reduction of dimensions, and they show different behaviors compared to the corresponding bulk sample. To study these changes, in this research, we investigated the effect of size and preparation
Sajjad Sayyar   +2 more
doaj   +1 more source

Investigating Exchange Bias and Coercivity in Fe3O4–γ-Fe2O3 Core–Shell Nanoparticles of Fixed Core Diameter and Variable Shell Thicknesses

open access: yesNanomaterials, 2017
We have carried out extensive measurements on novel Fe3O4–γ-Fe2O3 core–shell nanoparticles of nearly similar core diameter (8 nm) and of various shell thicknesses of 1 nm (sample S1), 3 nm (sample S2), and 5 nm (sample S3).
Ihab M. Obaidat   +5 more
doaj   +1 more source

Influence of Li2CO3 addition on electrical and magnetic properties of Ni0.6Mg0.4Fe2O4 [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
In this research, influence of adding Li2CO3 (at 0%, 2%, 4%, 6%) on electrical and magnetic properties of Ni0.6Mg0.4Fe2O4 (with 60% Ni and 40% Mg) ferrite has been studied.
M. R. Hassan, M. T. Islam, M. N. I. Khan
doaj   +1 more source

Transitivity in coercive subtyping

open access: yesInformation and Computation, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhaohui Luo, Yong Luo 0001
openaire   +1 more source

High performance hot-deformed Nd-Fe-B magnets (Review)

open access: yesScience and Technology of Advanced Materials, 2021
Hot-deformed anisotropic Nd-Fe-B magnets may potentially attain high coercivity due to their fine and highly orientated crystal grain microstructure as a result of the unique production process that creates these magnets.
Keiko Hioki
doaj   +1 more source

Exchange Bias in Nanostructures: An Update

open access: yesNanomaterials, 2023
Exchange bias (EB) is a unidirectional anisotropy occurring in exchange-coupled ferromagnetic/antiferromagnetic systems, such as thin films, core–shell particles, or nanostructures.
Tomasz Blachowicz   +2 more
doaj   +1 more source

Coercive Sexual Strategies

open access: yesViolence and Victims, 1998
This study examines the use of coercive sexual strategies by men and the outcomes of these behaviors for women. Using a sample of 541 college undergraduates, data were gathered from men on their use of three types of coercive sexual strategies and from women on their experiences with these same forms of behaviors.
Tyler, Kimberly A.   +2 more
openaire   +3 more sources

La–Mg-Substituted M-Type Sr-Hexaferrites for Enhanced Hard Magnetic Properties

open access: yesApplied Sciences
This study investigates the structural and magnetic properties of La–Mg co-substituted M-type strontium hexaferrites with the compositions Sr1−xLaxFe12−xMgxO19 (x = 0, 0.05, 0.1, 0.15), synthesized via a conventional solid-state reaction route.
Jeong-Jin Kim, Young-Min Kang
doaj   +1 more source

Experimental approaches for micromagnetic coercivity analysis of advanced permanent magnet materials

open access: yesScience and Technology of Advanced Materials, 2021
Although coercivity is one of the fundamental properties of permanent magnets, it has not been well understood. In this paper, micromagnetics and thermal activation magnetization reversal theories are briefly reviewed, and then our recent macroscopic and
Satoshi Okamoto
doaj   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

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