12:00 pm - 12:20 pm: Juanita Bocquel

Quantum Sensors on a Tip: Advancing Nanoscale Imaging 

Imaging is a fundamental tool for visualizing and interpreting physical properties, with scanning probe techniques providing a versatile way to investigate phenomena at length scales from nanometers to microns. Among these, scanning Nitrogen-Vacancy (NV) magnetometry has emerged as a particularly effective approach, enabling the quantitative imaging of magnetic fields at the nanoscale. By utilizing the spin properties of a single NV center in diamond, this technique offers high sensitivity across a wide range of conditions, from cryogenic to elevated temperatures.  

12:20 pm - 12:40 pm: Sergio de la Barrera

Quantum junction on a tip: A reconfigurable probe of 2D interfaces

Abstract: Moiré physics is powered by nanoscale registry and momentum selectivity, but most platforms lock these knobs in place once a device is fabricated. I will introduce a quantum junction on a tip, a scanning probe approach that forms a clean nanoscale 2D-2D contact and enables continuous in-situ control of twist angle during measurement. This junction-as-a-probe approach aims to deliver reconfigurable moiré interfaces and momentum-resolved tunneling spectroscopy of electronic structure with the resolution needed to access moiré-scale features.