Spins, Valleys, and Topological States in 2D and Layered Materials (8331)
June 04, 2017 – June 08, 2017
Columbus, Ohio at The Ohio State University
Roland Kawakami, Ohio State University
Joshua Goldberger, Ohio State University
Yuan-Ming Lu, Ohio State University
2D van der Waals materials and their heterostructures have emerged as an important class of materials for realizing unique physical phenomena and for developing potential electronic applications beyond silicon-CMOS. One of the fascinating topics in 2D materials is the investigation of spin polarization, valley polarization, and topological states, due to their wide range of spin-orbit and exchange interactions, as well as their extreme surface sensitivity and gate tunable Fermi level. For spin transport, the low spin orbit coupling and high mobility of graphene produces the longest room temperature spin diffusion lengths of any material. The monolayer and few layer transition metal dichalcogenides (TMD) lie at the other end of the spectrum with large spin-orbit coupling, which can produce strong intrinsic spin/valley Hall effects, spin-valley locking, and complex spin/valley dynamics.
Furthermore, the advent of new materials such as group- IV graphene/graphane analogues (silicene, germanane, stanene, etc.), magnetic TMDs, and heavy metal van der Waals crystals can produce novel topological states and/or magnetic order which could be tuned with electrostatic gates. Moreover, the ability to create vertical stacks of the various 2D materials by ultraclean dry transfer processes will completely open the door to further intriguing phenomena through proximity interactions among the various layers.
The aim of the workshop is to bring together researchers from related subtopics to create highly integrated 2D platforms for spin/valley/topological physics and potential applications. With the continued evolution of graphene spintronics, combined with the recent advances in spin/valley dynamics in monolayer TMDs, and novel concepts related to the theory and synthesis of emerging new materials, there is a critical mass of researchers with complementary interests. In particular, the participants will bring expertise from a variety of disciplines including condensed matter physics, solid state chemistry, materials science, and electrical engineering.
Topics to be covered during the workshop:
(a) Graphene spintronics: spin transport, induced magnetism, spin Hall effect
(b) Valley/spin polarization in transition metal dichalcogenides: spin/valley dynamics,
(c) New materials for topological states and magnetism: silicene/germanane/stanene, Dirac/Weyl semimetals, magnetic transition metal trichalcogenides, etc.
Event website: https://u.osu.edu/2dspin/