Analisis Fasa, Struktur Kristal dan Sifat Kemagnetan Material Komposit Berbasis Nd0,6Sr0,4MnO3 / Fe2O3
Abstract
Pada penelitian ini dipelajari rekayasa struktur material komposit berbasis neodymium manganit, yang dimulai dengan mensintesis material Nd0,6Sr0,4MnO3 (NSMO) dengan menggunakan metode sol-gel, lalu dilanjutkan dengan sintesis material komposit (Nd0,6Sr0,4MnO3)1-x/(Fe2O3)x (x= 0; 0,3; 0,5 dan 0,7). Sampel dikarakterisasi dengan menggunakan XRD (X-Ray Diffraction) menunjukkan bahwa sampel NSMO memiliki struktur kristal orthorombik dengan space group P n m a, pengkompositan dengan Fe2O3 tidak menyebabkan perubahan struktur tetapi muncul fasa lain yang ditandai dengan adanya puncak difraksi milik Fe2O3. Karakterisasi FESEM (Field Emission Scanning Electron Microscope) menunjukkan persebaran butir yang merata dengan ukuran butir rata-rata 0.186 μm. Karakterisasi VSM (Vibrating Sample Magnetometer) pada temperatur ruang (298 K) dengan medan magnet 5 T, menunjukkan material komposit NSMO / Fe2O3 bersifat paramagnetik dan nilai magnetisasi serta susceptibilitas sampel semakin menurun seiring dengan penambahan konsentrasi Fe2O3.
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DOI: https://doi.org/10.15408/fiziya.v3i2.17638 Abstract - 0 PDF - 0
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