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Phonon properties of Co:TiO2 single crystal
Setiadi H.a, Prasetyo A.a, Suendo V.a, Nugroho A.A.a
a Institut Teknologi Bandung, Bandung, 40132, 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]© (2015) Trans Tech Publications, Switzerland.Phonon properties of cobalt doped rutile TiO2 single crystal was investigated using a Raman Spectrometer with laser wavelength at 532 nm in the temperature range from 140 K to 750 K. The phonon modes of B1g, Eg, and A1g with the energy of 140 cm-1, 450 cm-1 and 600 cm-1 are clearly observed. The second order phonon process is also observed at the energy of 250 cm-1. The temperature dependence of the A1g, Eg modes become stiffen as lowering the temperature, while the B1g mode becomes soften. The temperature dependence of the B1g is found to be a signature as the effect of doping. Based on the harmonic model, this is explained due to the change the Ti-O coupling strengths of TiO6 octahedral. A larger change is found for the longer distance of the Ti-O bond.[/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]Anharmonicities,Coupling strengths,Effect of doping,Phonon properties,Raman spectrometers,Rutile TiO2,Temperature dependence,Temperature range[/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]Anharmonicity,Co-doped rutile TiO2,Phonon[/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/10.4028/www.scientific.net/MSF.827.360[/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]