Dresden 2026 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 23: Transport Properties
HL 23.1: Talk
Wednesday, March 11, 2026, 09:30–09:45, POT/0051
Nonlinear charge transport in single crystalline slabs of Bi2Se3 — •Igor Veremchuk1, Pavlo Makushko1, Anita Guarino2, Muhammad Waqee Ur Rehman2, Rosalba Tatiana Fittipaldi2, Tobias Kosub1, Alexej Pashkin1, Fabian Ganss1, Proloy T. Das1, Rui Xu1, Rhonald Burgos Atencia3, Debottam Mandal3, Antonio Vecchione2, Carmine Ortix3,2, and Denys Makarov1 — 1Helmholtz-Zentrum Dresden-Rossendorf e.V., 01328 Dresden, Germany — 2CNR-Institute for SuPerconductors, Innovative materials, and devices, Salerno, Italy — 3Dipartimento di Fisica "E. R. Caianiello", Universita di Salerno, IT-84084 Fisciano (SA), Italy
Nonlinear charge transport is central to next-generation high-frequency electronics, enabling efficient rectification and frequency conversion up to the THz range. Nonlinear responses are observed in various material systems often focusing on thin films including Bi [1], Te [2], and Bi2Se3 [3]. In this study, we will report experimental observations of nonlinear charge transport in Bi2Se3 single crystals, which is explained based on peculiarities of the structural properties of layered Bi2Se3 materials. Our findings can be applied to a broad range of van der Waals centrosymmetric compounds.
[1] P. Makushko, I. Veremchuk et al., Nat. Electron. 7, 207 (2024).
[2] B. Cheng et al., Nat. Commun. 15, 5513 (2024).
[3] P. He et al., Nat. Commun. 12, 698 (2021).
Keywords: Nonlinear charge transport; Bi$2$Se$3$; single crystal; van der Waals