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Sintesis senyawa feroelektrik yang berbasis fasa Aurivillius berlapis empat (n = 4) yang didadah kation La 3+  dan Mn 3+ , Ca 1-x Bi 3,5+x La 0,5 Ti 4-x Mn x O 15  dengan  x  = 0, 0,2, 0,4, 0,6, 0,8, dan1 telah dilakukan dengan teknik lelehan garam. Karakterisasi produk dengan difraksi sinar-X (XRD) menunjukkan bahwa fasa tunggal Aurivillius ditunjukkan oleh sampel dengan  x  = 0, 0,2, 0,4, dan 0,6.  Refinement  struktur dengan teknik  Le Bail  diketahui bahwa senyawa Aurivillius yang terbentuk sesuai dengan simetri ortorombik dan grup ruang  A2 1 am . Analisis dengan  Scanning Electron Microscopy  (SEM) untuk semua sampel memperlihatkan morfologi sampel berupa lempengan yang merupakan ciri khas senyawa Aurivillius. Nilai konstanta dielektrik sampel dan konduktivitasnya mengalami kenaikan dengan meningkatnya  x . Konduktivitas paling tinggi dimiliki oleh sampel  x  = 0,2 yang diperkirakan akibat adanya interaksi pertukaran ganda ( double exchange ) antara Mn 3+  dan Mn 4+ .   Synthesis of Aurivillius Compounds Ca 1-x Bi 3,5 + x La 0,5 Ti 4-x Mn x O 15 : Structure and Dielectric Properties  .  Synthesis of ferroelectric compounds based on a four-phase Aurivillius phase (n = 4) which is doped with La 3+  and Mn 3+  cations, Ca 1-x Bi 3,5+x La 0,5 Ti 4-x Mn x O 15  with  x  = 0, 0.2, 0.4, 0.6, 0 , 8, and 1 were carried out by molten salts technique. Characterization of products using X-ray diffraction (XRD) revealed that the single phase Aurivillius was shown by the samples with  x  = 0, 0,2, 0,4, and 0,6. The results of refinement show that the Aurivillius phase formed has orthorhombic symmetry with  A2 1 am  space group. Morphology analysis by scanning electron microscopy (SEM) for all samples shows the plate-like as the characteristic of Aurivillius compounds. The value of dielectric constant and conductivity of the samples increases as increase of x. The conductivity of  x  = 0.2 is the highest predicted due to the interaction of double exchange between Mn 3+  and Mn 4+ .

Sintesis Senyawa Aurivillius Ca1-xBi3,5+xLa0,5Ti4-xMnxO15: Struktur dan Sifat Dielektrik