Physics Main Calendar

View Full Calendar

Undergraduate Physics Seminar: "Developing gating devices for scanning tunneling microscope", Jessie Wei

Event Type
Seminar/Symposium
Sponsor
Department of Physics
Location
Loomis 464
Virtual
wifi event
Date
Apr 11, 2024   5:00 pm   6:00 PM
Speaker
Jessie Wei
Contact
Tushar Mohan
E-Mail
tusharm4@illinois.edu
Phone
848-702-1630
Views
23
Originating Calendar
Physics - Undergraduate Student Events

Using a gating device compatible with the scanning tunneling microscope (STM), we adjust the doping level in our molecular-beam epitaxy (MBE) films through a back gate, and observe the change in local density of states with STM. To develop the gating device, we measure the dielectric breakdown of hBN-SiO2 and Al2O3-SiO2, and transfer high-quality graphene on the devices. The films are then grown on the devices with MBE and studied with STM. We show how the STM compatible gate-tunable devices are developed, how the materials is grown on the devices, and STM spectrums on gated materials.

link for robots only