Schematic of Geometry Used (IMAGE)

University of Illinois Grainger College of Engineering

Schematic of Geometry Used

Caption

This is a schematic, cutaway view of the geometry used to generate currents of spin from currents of heat. Pulses of laser light heat the left side of the sample and create an intense current of heat passing through the [Co,Ni] ferromagnet. This current of heat creates a separation of electron spins that then diffuse through the Cu heat sink and affect the magnetization of a second ferromagnetic layer, CoFeB, causing the magnetization to tilt and then precess. The total thickness of the sample is approximately 100 nm.

Credit

Alex Jerez, Imaging Technology Group, The Beckman Institute

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