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The thickness-induced magneto-transport and optic properties enhancement in Sb(2)Te(3) flakes

The electric and optical properties were studied in Sb(2)Te(3) with different thickness. It reveals the same resistivity at measured temperatures, but shows a larger magnetoresistance ratio at thicker flakes. All measured data conformed to a linear correlation between magnetoresistance ratio which i...

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Detalles Bibliográficos
Autores principales: Huang, Shiu-Ming, Chen, Kai-Jui, Yan, You-Jhih, Yu, Shih-Hsun, Chou, Mitch
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6232170/
https://www.ncbi.nlm.nih.gov/pubmed/30420731
http://dx.doi.org/10.1038/s41598-018-34857-y
Descripción
Sumario:The electric and optical properties were studied in Sb(2)Te(3) with different thickness. It reveals the same resistivity at measured temperatures, but shows a larger magnetoresistance ratio at thicker flakes. All measured data conformed to a linear correlation between magnetoresistance ratio which is one-order enhanced, and mobility over a wide mobility range. A higher photocurrent response is observed in thicker flakes. These results support that the thickness enhances the effective carrier mobility which leads to magneto-transport and optic properties enhancement.