Condensed Matter Seminars This Term
Thursday, February 4, 2021
3:30 PM
Online, Room via Zoom
Note special room.
Thursday, February 11, 2021
3:30 PM
Online, Room via Zoom
Note special room.
Thursday, February 18, 2021
3:30 PM
Online, Room via Zoom
Note special room.
Thursday, February 25, 2021
3:30 PM
Physics Building, Room TBA
Note special room.
Thursday, March 4, 2021
3:30 PM
Physics Building, Room TBA
Note special room.
Thursday, March 11, 2021
3:30 PM
Online, Room via Zoom
Note special room.
"Ferrimagnetic materials for room temperature small skyrmions"
Wei Zhou , University of Virginia - Department of Physics
[Host: Joe Poon]
The magnetic skyrmions are topologically protected spin configuration, which stabilized by Dzyaloshinskii-Moriya interaction (DMI). Due to skyrmions’ ability to be small, stable, and controllable by electric current [1], they have considerable potential for high-density data storage applications. It is theoretically predicted that ferrimagnetic materials prefer holding small skyrmions at room temperature (RT) [2,3]. 10-15nm ferrimagnetic CoGd heterostructures and 10-15nm ferrimagnetic Mn4N heterostructures were fabricated by magnetron sputtering for holding small skyrmions at RT. Magnetic force microscope images show skyrmions. A designed compound layer is capping on the top of the magnetic layer to adjust the interfacial DMI, thus tune the size of skyrmions. The micromagnetic simulation was performed to study the effect of DMI on the size of skyrmions Mn4N.
Thursday, March 18, 2021
3:30 PM
Physics Building, Room TBA
Note special room.
Thursday, March 25, 2021
3:30 PM
Physics Building, Room TBA
Note special room.
Thursday, April 1, 2021
4:30 PM
Physics Building, Room TBA
Note special time.
Note special room.
Thursday, April 8, 2021
3:30 PM
via Zoom, Room Online
Note special room.
TBA
Thursday, April 15, 2021
3:30 PM
Online, Room via Zoom
Note special room.
TBA
Thursday, April 22, 2021
3:30 PM
Online, Room via Zoom
Note special room.
TBA
Thursday, April 29, 2021
3:30 PM
Physics Building, Room TBA
Note special room.
To add a speaker, send an email to gc6u@Virginia.EDU Include the seminar type (e.g. Condensed Matter Seminars), date, name of the speaker, title of talk, and an abstract (if available). [Please send a copy of the email to phys-speakers@Virginia.EDU.]