Enhancement of Hard Magnetic Properties in Fraktal-Like Nano and Mesoscopic Grains
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F21%3A10247151" target="_blank" >RIV/61989100:27240/21:10247151 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.mdpi.com/1996-1944/14/6/1443" target="_blank" >https://www.mdpi.com/1996-1944/14/6/1443</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma14061443" target="_blank" >10.3390/ma14061443</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Enhancement of Hard Magnetic Properties in Fraktal-Like Nano and Mesoscopic Grains
Popis výsledku v původním jazyce
The paper refers to Monte Carlo magnetic simulations for fractal-like nano and mesoscopic grains. The analyzed objects differed in the size, surface development, magnetic anisotropy and the spin values attributed to the system nodes inside the fractal. Such an approach allowed us to determine their magnetization processes as well as optimization characteristics in the direction to enhancement of hard magnetic properties. As it was shown, the size effects depend on the chosen value of magnetic anisotropy. In the case of fractals with ultra-high coercivity, the decreasing of their size leads to deterioration of coercivity, especially for the high surface to volume ratio. Opposite effects were observed for soft magnetic fractals when the nanostructure caused an appearance of the coercive field, and the maximum of energy product was predictably significantly higher than for conventional rare earths' free permanent magnets.
Název v anglickém jazyce
Enhancement of Hard Magnetic Properties in Fraktal-Like Nano and Mesoscopic Grains
Popis výsledku anglicky
The paper refers to Monte Carlo magnetic simulations for fractal-like nano and mesoscopic grains. The analyzed objects differed in the size, surface development, magnetic anisotropy and the spin values attributed to the system nodes inside the fractal. Such an approach allowed us to determine their magnetization processes as well as optimization characteristics in the direction to enhancement of hard magnetic properties. As it was shown, the size effects depend on the chosen value of magnetic anisotropy. In the case of fractals with ultra-high coercivity, the decreasing of their size leads to deterioration of coercivity, especially for the high surface to volume ratio. Opposite effects were observed for soft magnetic fractals when the nanostructure caused an appearance of the coercive field, and the maximum of energy product was predictably significantly higher than for conventional rare earths' free permanent magnets.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materials
ISSN
1996-1944
e-ISSN
—
Svazek periodika
14
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
11
Strana od-do
"1443(1)"-"1443(11)"
Kód UT WoS článku
000640035500001
EID výsledku v databázi Scopus
2-s2.0-85103253802