Graphene nanoribbons offer a route to engineer graphene into a one-dimensional quantum system, but accessing their intrinsic physics requires precise control of both their atomic structure and surrounding environment. In this talk, I will describe our development of superlubricity-enabled growth of ultralong, ultranarrow graphene nanoribbons within hexagonal boron nitride (hBN), providing a clean and electrically accessible platform for one-dimensional transport [1]. I will discuss how the combination of controlled GNR structure and the low-disorder hBN environment enables high-quality electronic devices [1], and at low temperatures, these systems exhibit quantum transport phenomena including Coulomb blockade and interaction-driven power-law behavior [2]. These observations point toward possible Luttinger-liquid physics in graphene nanoribbons and demonstrate a pathway from bottom-up materials engineering to interacting one-dimensional quantum systems.
References:
[1] B. Lyu, et.al., Nature 628, 758–764(2024).
[2] P. Shen#, B. Lyu#, et.al., Nano Letters 25(22), 8825-8833(2025).
Do not forget to register for pizza!
Location: Stuckelberg, Ecole de Physique
Time: Friday October 16, pizza from 12:30, seminar from 13:00