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SYCL: Symposium Curvilinear condensed matter

SYCL 1: Curvilinear Condensed Matter

SYCL 1.1: Hauptvortrag

Freitag, 20. März 2020, 09:30–10:00, HSZ 02

Topology and transport in nanostructures with curved geometries — •Carmine Ortix — Institute for Theoretical Physics, Utrecht University, Netherlands — Dipartimento di Fisica “E. R. Caianiello”, Universita’ di 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 first show how the very fundamental quantum mechanical properties of the charge carriers in these nanomaterials are strongly affected by the curved background in which they live. Then I will discuss examples of unique curvature-induced topological and transport properties, including geometrical control of spin and charge transport properties [1], strongly directional dependent magnetoresistance [2,3], the generation of topological insulating phases in shape deformed nanowires with Rashba spin-orbit coupling [4], and non-linear Hall effect due Berry curvature dipoles in corrugated graphene [5,6].

[1] S. K. Das, D. Makarov, P. Gentile, M. Cuoco, B. J. van Wees, C. Ortix, I. J. Vera-Marun, Nano Letters 19, 6839 (2019); [2] C.-H. Chang, J. van den Brink, C. Ortix, Phys. Rev. Lett. 113, 227205 (2014); [3] C.-H. Chang, C. Ortix, Nano Letters 17, 3076 (2017); [4] P. Gentile, M. Cuoco, C. Ortix, Phys. Rev. Lett. 115, 256801 (2015); [5] R. Battilomo, N. Scopigno, C. Ortix, Phys. Rev. Lett. 123, 196403 (2019); [6] S.-C. Ho et al., arXiv: 1910. 07509 (2019).