Syarief, Firman
Universitas Riau

Published : 1 Documents
Articles

Found 1 Documents
Search

PERHITUNGAN INTERAKSI ANTAR NANOPARTIKEL MAGNETIK DAN MAGNETISASI DALAM LAPISAN TIPIS COBALT SAMARIUM MENGGUNAKAN SOFTWARE MATLAB R2015a

Komunikasi Fisika Indonesia Vol 14, No 2 (2017)
Publisher : Universitas Riau

Show Abstract | Original Source | Check in Google Scholar

Abstract

The calculation of magnetic nanoparticles interaction and magnetization in thin film ofsamarium-cobalt using MATLAB R2015a Software has been performed. The computerconsisted of two program that is program menu and main program. The data entered in theprogram menu are DCD and IRM magnetization values obtained from measurements usingalternating gradient force magnetometer (AGFM). The next step, the main program willcalculate magnetic nanoparticles interaction and magnetization and displays the results ingraphical form. Samarium composition was varied from 10%, 13%, 16%, 22%, 35% and40%. The results show the interaction is positive in the sample, except for samarium 16% ofthe value of a negative interaction (-0.4 Arb.Unit), meaning that from the nature of dipolarinteractions. Sample magnetization value decreases linearly from the composition of 10% to40%, ie 1085,33 emu/cm3 to 226,23 emu/cm3, while the value of coercivity rises with theaddition of samarium composition up to 16%, and maximum values contained in thecomposition of 16%, ie 2052.17 Oersted. Adding of SmCo reaction above 16 at % Smproduced small value of coercivity of the films.