Magnetotransport Studies of topological Sb_2Te_(2-x)Se_x Single Crystal
| dc.contributor.author | Miertschin, Duncan | |
| dc.contributor.author | Shrestha, Keshav | |
| dc.date.accessioned | 2021-03-24T20:37:32Z | |
| dc.date.available | 2021-03-24T20:37:32Z | |
| dc.date.issued | 2021-03-04 | |
| dc.description | Expected Findings: Magnetoresistance of the Sb_2Te_(2-x)Se_x single crystal shows clear quantum oscillations with two distinct frequencies. | en_US |
| dc.description.abstract | We have studied the magnetotransport properties of a topological compound, Sb2Te2-xSex. The electrical resistance decreases with temperature showing the metallic behavior. Magnetoresistance (MR) increases with increasing magnetic field, and it reaches a value as high as 300 % at 14 T without showing any sign of saturation. At higher fields, MR shows clear Shubnikov de Haas (SdH) oscillations with a single frequency near 178 T. In addition, there appears a tiny peak near 24 T in the frequency spectrum. We have also analyzed the temperature-dependent quantum oscillations using the Lifshitz-Kosevich theory and calculated several physical parameters characterizing the SdH oscillations. The possible origin of the low frequency at 24 T will also be discussed. | en_US |
| dc.description.sponsorship | Killgore Research Grant | en_US |
| dc.identifier.uri | https://hdl.handle.net/11310/417 | |
| dc.language.iso | en_US | en_US |
| dc.title | Magnetotransport Studies of topological Sb_2Te_(2-x)Se_x Single Crystal | en_US |
| dc.type | Presentation | en_US |
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