Results 21 to 30 of about 21,402 (315)

Investigation of Ferrimagnetic Sr-hexaferrite Nanocrystals for Clinical Hyperthermia

Medžiagotyra, 2021
Sr-hexaferrite samples were produced via the conventional ceramic method. X-ray diffractometry (XRD) patterns confirmed the single nanocrystal phase as Sr-hexaferrite where any pattern peaks of unreacted Fe2O3 phase were  not detected.
Burcu ERTUĞ
doaj   +1 more source

Inverted Hysteresis Loops in the Fe73.5Cu1Nb3Si13.5B9 Alloy With Small Coercivity

Frontiers in Materials, 2021
The phenomenon of inverted hysteresis loop has been observed in many materials for the past decades. However, the physical origin of the inverted hysteresis loop has long been debated.
P. P. Shen, P. P. Shen, Y. T. Wang, Y. T. Wang, B. A. Sun, B. A. Sun, B. A. Sun   +6 more
doaj   +1 more source

Synthesis and magnetic properties of chromium doped cobalt ferrite nanotubes

Materials Research Express, 2020
Chromium (Cr) doped cobalt ferrite (Co _1−x Cr _x Fe _2 O _4 :x = 0.0, 0.02, 0.04, 0.06, 0.08, 0.1, denoted as to CCFO) hollow nanotubes were synthesized by electrospinnig method followed by, calcining treatment at 700 °C in air.
Zengpeng Li, Jianfeng Dai, Chen Cheng, Zhongqiang Suo, Wang qing   +4 more
doaj   +1 more source

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

Journal 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

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

Progress 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, Bagher Aslibeiki, Asghar Asgari   +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

Nanomaterials, 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, Chiranjib Nayek, Kaustuv Manna, Gourab Bhattacharjee, Imaddin A. Al-Omari, Abbasher Gismelseed   +5 more
doaj   +1 more source

Temperature dependence of the magnetization processes in Co/Al oxide/Permalloy trilayers

, 2000
The magnetization process of Co/Al oxide/Py trilayers and its evolution with the temperature have been analyzed. The particular behavior of the Co layers, including the shift of the hysteresis loops and a coercivity increase with the decrease of ...
Labarta, Amílcar, Hernando, Antonio, 1947-, González-Miranda, J. M. (Jesús Manuel), Pina, E., Prados, C., Hattink, Bart Jan, Batlle Gelabert, Xavier   +6 more
core   +1 more source

Transitivity in coercive subtyping

Information 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)

Science 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

Nanomaterials, 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, Andrea Ehrmann, Martin Wortmann   +2 more
doaj   +1 more source