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Ferroelectric properties of Ba2Bi4Ti 5O18 doped with Pb2+, Al3+, Ga 3+, In3+, Ta5+ aurivillius phases
Rosyidah A.a, Onggo D.a, Khairurrijala, Ismunandara
a Inorganic and Physical Chemistry Research Division, Institut Teknologi Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]In recent years, bismuth layer structured ferroelectrics (BLSFs) have been given much attention because some materials, such as Ba2Bi 4Ti5O18, are excellent candidate materials for nonvolatile ferroelectric random access memory (FRAM) applications. BLSFs are also better candidates because of their higher Curie points. Recently, we have carried out computer simulation in atomic scale in order to predict the energies associated with the accommodation of aliovalent and isovalent dopants (Pb 2+, Al3+, Ga3+, In3+, Ta 5+) in the Aurivillius structure of Ba2Bi 4Ti5O18. In this work, the predicted stable phases were synthesized using solid state reactions and their products then were characterized using powder X-ray diffraction method. The cell parameters were determined using Rietveld refinement in orthorhombic system with space group of B2cb. The cell parameters for Ba2Bi4Ti5O 18 doped with Pb2+, Al3+, Ga3+, In3+, Ta5+ were a=5.5006(6) b=5.4990(5) c=50.5440(7)Å; a=5.5012(4) b=5.4986(8) c=50.5449(7)Å; a=5.5006(3) b=5.4999(3) c=50.5437(9)Å; a=5.5007(4) b=5.4989(7) c=50.5446(6)Å; and a=5.5000(5) b=5.4995(8) c=50.5436(6)Å. Results from the ferroelectric properties measurement for Ba2Bi4Ti5O 18 doped with Pb2+, Al3+, Ga3+, In3+, Ta5+ were Pr=16.7μC/cm2, Ec=35.1kV/cm; Pr=15.9μC/cm2, E c=33.8kV/cm; Pr=15.6μC/cm2, E c=34.2kV/cm; Pr=15.3μC/cm2, E c=34.0kV/cm; Pr=16.9μC/cm2, E c=35.6kV/cm. © 2008 American Institute of Physics.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Aurivillius phase,Ba 2Bi4Ti5O18,Ferroelectric properties,Rietveld refinement[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1063/1.2906041[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]