Condensed Matter Seminars This Term

Condensed Matter
Thursday, February 4, 2021
3:30 PM
Online, Room via Zoom
Note special room.

 Add to your calendar

Available
Condensed Matter
Thursday, February 11, 2021
3:30 PM
Online, Room via Zoom
Note special room.

 Add to your calendar

Available
Condensed Matter
Thursday, February 18, 2021
3:30 PM
Online, Room via Zoom
Note special room.

 Add to your calendar

Available
Condensed Matter
Thursday, February 25, 2021
3:30 PM
Physics Building, Room TBA
Note special room.

 Add to your calendar

RESERVED
Condensed Matter
Thursday, March 4, 2021
3:30 PM
Physics Building, Room TBA
Note special room.

 Add to your calendar

Available
Join Zoom Meeting:


Thursday, March 11, 2021
3:30 PM
Online, Room via Zoom
Note special room.

 Add to your calendar

"Ferrimagnetic materials for room temperature small skyrmions"


Wei Zhou , University of Virginia - Department of Physics
[Host: Joe Poon]
ABSTRACT:

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.

 

Reference:
[1] Fert, A., et al. Magnetic skyrmions: advances in physics and potential applications. Nat Rev Mater 2, 17031 (2017).
[2] Büttner, F., et al. Theory of isolated magnetic skyrmions: From fundamentals to room temperature applications. Sci Rep 8, 4464 (2018).
[3] C.T. Ma., et al. Robust Formation of Ultrasmall Room-Temperature Neél Skyrmions in Amorphous Ferrimagnets from Atomistic Simulations. Sci Rep 9, 9964 (2019).
 
 
Condensed Matter
Thursday, March 18, 2021
3:30 PM
Physics Building, Room TBA
Note special room.

 Add to your calendar

Available
Condensed Matter
Thursday, March 25, 2021
3:30 PM
Physics Building, Room TBA
Note special room.

 Add to your calendar

Available
Condensed Matter
Thursday, April 1, 2021
4:30 PM
Physics Building, Room TBA
Note special time.
Note special room.

 Add to your calendar

RESERVED
Join Zoom Meeting: TBA


Thursday, April 8, 2021
3:30 PM
via Zoom, Room Online
Note special room.

 Add to your calendar

"TBA"


Adrian Feiguin , Noretheastern University
[Host: Israel Klich ]
ABSTRACT:

TBA

Condensed Matter
Thursday, April 15, 2021
3:30 PM
Online, Room via Zoom
Note special room.

 Add to your calendar

"TBA"


Sheng Zhang , University of Virginia - Department of Physics
ABSTRACT:

TBA

Condensed Matter
Thursday, April 22, 2021
3:30 PM
Online, Room via Zoom
Note special room.

 Add to your calendar

"TBA"


Saikat Bera , University of Virginia - Department of Physics
[Host: Marija Vucelja]
ABSTRACT:

TBA

Condensed Matter
Thursday, April 29, 2021
3:30 PM
Physics Building, Room TBA
Note special room.

 Add to your calendar

RESERVED

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.]