Colloquium
Upcoming Colloquium
Ionic and Geometric Tuning of Magnetism: Paths to Next-Generation Hardware
Dr. Julius de Rojas, Oklahoma State University
September 30, 2024
11:00am in HSCI-102
In this talk, I will overview the challenges facing conventional computing structures and how emerging spintronic approaches such as magneto-ionics and magnonics provide a potential path forward. I will then present our work on magneto-ionics in transition metal oxides and nitrides, an emerging subfield of spintronics in which material
properties can be tuned by moving ions into and out of magnetic material under low-power. I will highlight novel functionalities in oxygen-based and nitrogen-based systems and discuss potential applications in next-generation computing paradigms such as neuromorphic computing. I will then overview our recent work on the magnetization dynamics of artificial spin ice arrays and their potential applications in magnonics, where spin-waves are used to transport and process data. I will then conclude with our investigation into "pseudo-3D" tri-layer artificial spin ice structures and demonstrate bespoke magnetization states and resonance spectra, a potentially programmable degree of freedom for magnonic and microwave devices.
About the Colloquium
The Colloquium is a unique opportunity for students to learn about new developments in physics and what physicists do after they graduate. Hosted by the Physics and Astronomy Department at California State University, Long Beach, the weekly meetings invite guests from universities, research laboratories, and industry to present and discuss current topics in physics. All students are encouraged to attend for a well-rounded experience and training in physics.
Colloquium Coordinator
For information and suggestions about the colloquium please contact the colloquium coordinator:
Dr. Michael Peterson
Michael.Peterson@csulb.edu
Schedule
| Date | Title | Speaker and Affiliation |
|---|---|---|
| September 30, 2024 | Ionic and Geometric Tuning of Magnetism: Paths to Next-Generation Hardware | Dr. Julius de Rojas, Oklahoma State University |
| October 7, 2024 | (topic: biophysics) | Dr. Meng Shen, CSU Fullerton |
| October 14, 2024 | (topic: condensed matter experiment) | Dr. Ezekiel Johnston-Halperin, Ohio State University |
| October 21, 2024 | (topic: quantum information theory) | Dr. Jonathan Gross, Google Quantum |
| October 28, 2024 | (topic: nuclear theory) | Dr. Zoltan Papp, CSU Long Beach |
| November 4, 2024 | (topic: particle physics) | Dr. Shirley Li, UC Irvine |
| November 18, 2024 | (topic: semiconductors) | Dr. Partha Dutta, United Semiconductor |
| December 2, 2024 | (topic: condensed matter theory) | Dr. Thomas Scaffidi, UC Irvine |
Previous Colloquia
The Colloquium Archive has the Colloquia from previous semesters.
| Date | Title | Speaker and Affiliation |
|---|---|---|
| September 23, 2024 | The "Hubble Tension": Measuring the Expansion History of the Universe with Gravitational Time Delays | Dr. Tommaso Treu, UCLA |
| September 16, 2024 | Spintronics with 2D Magnetic and Topological Materials: Outstanding Opportunities in van der Waals Heterostructures | Dr. Kelly Luo, USC |
| September 9, 2024 | Meet and Greet | All Physics Students and Faculty, CSU Long Beach |
Sponsors
We acknowledge with gratitude donations and support from the following present sponsors:
- H.E. and H.B. Miller and Family Endowment
- Benjamin Carter
- American Physical Society
- Anonymous
We also acknowledge with gratitude our past donors: The Forty-Niner Shops, Inc., The Northrop Grumman Foundation, Sandra Dana, Anonymous.
If you wish to support the Colloquium, please contact the colloquium coordinator or the department chair. Thank you!
