Northwestern Events Calendar

Apr
25
2019

CMP Seminar: Professor Se Kwon Kim: Spintronics in Quantum Materials

When: Thursday, April 25, 2019
4:00 PM - 5:30 PM Central

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Cristian Pennington  

Group: Physics and Astronomy Condensed Matter Physics Seminars

Category: Academic

Description:

Recent advancements in spintronic techniques originally developed for spin-based devices now enable us to study fundamental spin physics of various quantum materials with unprecedented spin-current control and measurement, opening a new area of theoretical and experimental investigation of quantum systems. In the first half of the talk, we will discuss the development history of spintronics with a concrete example of the evolution of the domain-wall technology in spintronics. In the second part, we will introduce an emerging research area of spin transport in quantum materials which is fueled by the aforementioned advanced spintronic techniques. As examples, we will discuss our researches on 2D honeycomb ferromagnets as magnon topological insulators [1], which shows how spintronic techniques can be used for probing elusive quantum materials, and long-range spin transport in spin-triplet superconductors such as Sr2RuO4 [2], which shows that quantum materials can provide novel platforms for efficient spin-transport devices.

[1] S. K. Kim, H. Ochoa, R. Zarzuela, and Y. Tserkovnyak, “Realization of the Haldane-Kane-Mele Model in a System of Localized Spins,” Phys. Rev. Lett. 117, 227201 (2016)
[2] S. B. Chung, S. K. Kim, K. H. Lee, and Y. Tserkovnyak, "Cooper-Pair Spin Current in a Strontium Ruthenate Heterostructure,” Phys. Rev. Lett. 121, 167001 (2018)

Professor Se Kwon Kim, University of Missouri - Columbia

Host: James Sauls

Keywords: Physics, Astronomy, Condensed Matter

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