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- W3099205429 abstract "Milling of 2D flakes is a simple method to fabricate nanomaterial of any desired shape and size. Inherently milling process can introduce the impurity or disorder which might show exotic quantum transport phenomenon when studied at the low temperature. Here we report temperature dependent weak antilocalization (WAL) effects in the sculpted nanowires of topological insulator in the presence of perpendicular magnetic field. The quadratic and linear magnetoconductivity (MC) curves at low temperature (>2 K) indicate the bulk contribution in the transport. A cusp feature in magnetoconductivity curves (positive magnetoresistance) at ultra low (<1 K) temperature and at magnetic field (<1 T) represent the WAL indicating the transport through surface states. The MC curves are discussed by using the 2D Hikami-Larkin-Nagaoka theory. The cross-over/interplay nature of positive and negative magnetoresistance observed in the MR curve at ultra-low temperature. Our results indicate that transport through topological surface states (TSS) in sculpted nanowires of Bi2Te3 can be achieved at mK range and linear MR observed at ∼2 K could be the coexistence of electron transport through TSS and contribution from the bulk band." @default.
- W3099205429 created "2020-11-23" @default.
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- W3099205429 date "2020-12-10" @default.
- W3099205429 modified "2023-09-26" @default.
- W3099205429 title "Accessing topological surface states and negative MR in sculpted nanowires of Bi<sub>2</sub>Te<sub>3</sub> at ultra-low temperature" @default.
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- W3099205429 doi "https://doi.org/10.1088/1361-648x/abc944" @default.
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