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Mechanisms, Materials, and Devices for Spin Manipulation


Senior Participants: Dan Ralph (Phys, co-leader), Eun-Ah Kim (Phys, co-leader), Sunil Bhave (ElecE), Robert Buhrman (Appl Phys), Craig Fennie (Appl Phys), Gregory D. Fuchs (Appl Phys), David Muller (Appl Phys), Farhan Rana (ElecE) • Collaborators: C.-B. Eom (Wisconsin), X. Fan (Denver), G. Finocchio (University of Messina, Italy), S. Gruner (Cornell), D. Lederman (West Virginia), X. Li (UT Austin), A. Manchon (KAUST), K.A. Moler (Stanford), N. Samarth (Penn. State), D. Schlom (Cornell), S. Sluyterman (FEI Co., Eindhoven), J. Q. Xiao (Delaware), F. Yang (Ohio State)

The goal of our research is to understand, optimize, and develop applications of new methods for manipulating electron spins, in both ferromagnetic and non-ferromagnetic materials. The group is pursuing the materials innovations necessary for the control of ferromagnetic dynamics using spin-transfer torque, developing a new class of coherent, frequency-tunable microwave sources, investigating new mechanisms for current-controlled spin dynamics within antiferromagnets and ferromagnet/antiferromagnet devices, and studying spin transport and spin torque in the surface state of topological insulators. Advances in spin control may enable a variety of applications, including nonvolatile magnetic random access memories capable of being scaled to very high densities.