SKM 2021 – wissenschaftliches Programm

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SYCL: Symposium Curvilinear condensed matter

SYCL 1: Curvilinear condensed matter 1

SYCL 1.2: Hauptvortrag

Mittwoch, 29. September 2021, 10:30–11:00, Audimax 2

Topology and Transport in nanostructures with curved geometries — •Carmine Ortix — Institute for Theoretical Physics, Utrecht University, Princetonplein 5, 3584 CC, Utrecht Netherlands — Dipartimento di Fisica "E. R. Caianiello", Universita' di Salerno, I-84084 Fisciano (Salerno), Italy

Recent advances in nanostructuring techniques have enabled the synthesis of compact three-dimensional nanoarchitectures: constructs of one- or two-dimensional nanostructures assembled in curved geometries, such as nanotubes and nanohelices. In this talk, I will discuss examples of unique geometry-driven topological and transport properties. These include the appearance of a non-linear Hall effect with time-reversal symmetry due to the Berry curvature dipole in corrugated bilayer graphene [1,2], the geometric control of spin transport properties in curved metallic nanochannels [3], the prediction of a strongly directional magnetotransport in carbon nanoscrolls [4], and the generation of topological insulating phases in shape-deformed semiconducting nanowires [5].

[1] R. Battilomo, N. Scopigno, C. Ortix, Physical Review Letters 123, 196403 (2019). [2] S.-C. Ho, C.-H. Chang, Y.-C. Hsieh, S.-T. Lo, B. Huang, T.-H.-Yen Vu, C. Ortix, T.-M. Chen, Nature Electronics 4, 116 (2021). [3] K. S. Das, D. Makarov, P. Gentile, M. Cuoco, B. J. van Wees, C. Ortix, I. J. Vera-Marun, Nano Letters 19, 6839 (2019). [4] C.-H. Chang, C. Ortix, Nano Letters 17, 3076 (2017). [5] P. Gentile, M. Cuoco, C. Ortix, Physical Review Letters 115, 256801 (2015).