Magnetic Textures in Quantum Materials: from Topology to Magnonics

Event Date:
2021-02-01T12:00:00
2021-02-01T13:00:00
Event Location:
https://ubc.zoom.us/j/62870796359?pwd=SkNWNnB4SW5mOWpEUUxCVE1pcWorUT09 Passcode: 581018
Speaker:
Ella Lachman
Related Upcoming Events:
Event Information:

Quantum materials are rapidly emerging as the basis for possible novel computation devices. However,
fully understanding the interplay between magnetic and electronic excitations are preventing us from
realizing their full potential. In my talk I will show how realizing the microscopic magnetic textures in
quantum materials is crucial to the understanding of transport phenomena on the macro scale.
I will demonstrate this with two examples from two different types of materials. First, I will show how
scanning nanoSQUID-on-tip magnetic imaging of magnetically doped topological insulators reveal the
underlying fragility of the Quantum Anomalous Hall effect at elevated temperatures. Then, I will show
how with a combination of transport, magnetization, and magnetic imaging of the Weyl semimetal
Co3Sn2S2, we find that the dynamics of domain walls are responsible for the anomalous transport
behavior in the material. These observations show that better understanding of the microscopic
magnetism in these systems reveal new phenomena and deepen our understanding of the interplay
between magnetic textures and electronic properties.

Add to Calendar 2021-02-01T12:00:00 2021-02-01T13:00:00 Magnetic Textures in Quantum Materials: from Topology to Magnonics Event Information: Quantum materials are rapidly emerging as the basis for possible novel computation devices. However, fully understanding the interplay between magnetic and electronic excitations are preventing us from realizing their full potential. In my talk I will show how realizing the microscopic magnetic textures in quantum materials is crucial to the understanding of transport phenomena on the macro scale. I will demonstrate this with two examples from two different types of materials. First, I will show how scanning nanoSQUID-on-tip magnetic imaging of magnetically doped topological insulators reveal the underlying fragility of the Quantum Anomalous Hall effect at elevated temperatures. Then, I will show how with a combination of transport, magnetization, and magnetic imaging of the Weyl semimetal Co3Sn2S2, we find that the dynamics of domain walls are responsible for the anomalous transport behavior in the material. These observations show that better understanding of the microscopic magnetism in these systems reveal new phenomena and deepen our understanding of the interplay between magnetic textures and electronic properties. Event Location: https://ubc.zoom.us/j/62870796359?pwd=SkNWNnB4SW5mOWpEUUxCVE1pcWorUT09 Passcode: 581018