Structural and magnetic properties of SmCo-based magnetic films grown by electron-beam evaporation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F15%3A00001526" target="_blank" >RIV/46747885:24620/15:00001526 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0304885315002553" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0304885315002553</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2015.03.034" target="_blank" >10.1016/j.jmmm.2015.03.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural and magnetic properties of SmCo-based magnetic films grown by electron-beam evaporation

Popis výsledku v původním jazyce

Sub-micron thick Sm–Co films (200 and 300 nm) with selective phase composition are grown on Si (100) substrates by electron-beam evaporation using Sm-lean alloy targets such as Sm4Co96 and Sm8Co92. The structural and magnetic properties of Sm–Co films are characterized by x-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and super-conducting quantum interference device (SQUID) magnetometer. The Sm–Co films obtained with the Sm4Co96 target exhibit Sm2Co17 as a prominent phase; while the films produced with the Sm8Co92 target show Sm2Co7 as a major phase. Both the Sm–Co films reveal granular morphology; however, the estimated grain size values are slightly lower in the case of Sm2Co7 films, irrespective of their thicknesses. Coercivity (Hc) values of 1.48 and 0.9 kOe are achieved for the as-grown 200-nm thick Sm2Co17 and Sm2Co7-films. Temperature-dependent magnetization studies confirm that the demagnetization behaviors of these films are consistent with respect to the identified phase composition. Upon rapid thermal annealing, maximum Hc value of 8.4 kOe is achieved for the 200 nm thick Sm2Co17-films. As far as e-beam evaporated Sm–Co films are concerned, this Hc value is one of the best values reported so far

Název v anglickém jazyce

Structural and magnetic properties of SmCo-based magnetic films grown by electron-beam evaporation

Popis výsledku anglicky

Sub-micron thick Sm–Co films (200 and 300 nm) with selective phase composition are grown on Si (100) substrates by electron-beam evaporation using Sm-lean alloy targets such as Sm4Co96 and Sm8Co92. The structural and magnetic properties of Sm–Co films are characterized by x-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and super-conducting quantum interference device (SQUID) magnetometer. The Sm–Co films obtained with the Sm4Co96 target exhibit Sm2Co17 as a prominent phase; while the films produced with the Sm8Co92 target show Sm2Co7 as a major phase. Both the Sm–Co films reveal granular morphology; however, the estimated grain size values are slightly lower in the case of Sm2Co7 films, irrespective of their thicknesses. Coercivity (Hc) values of 1.48 and 0.9 kOe are achieved for the as-grown 200-nm thick Sm2Co17 and Sm2Co7-films. Temperature-dependent magnetization studies confirm that the demagnetization behaviors of these films are consistent with respect to the identified phase composition. Upon rapid thermal annealing, maximum Hc value of 8.4 kOe is achieved for the 200 nm thick Sm2Co17-films. As far as e-beam evaporated Sm–Co films are concerned, this Hc value is one of the best values reported so far

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Magnetism and Magnetic Materials

ISSN

0304-8853

e-ISSN

—

Svazek periodika

385

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

313-317

Kód UT WoS článku

000352489100049

EID výsledku v databázi Scopus

2-s2.0-84924966126