Robust spin currents in mesoscopic metallic lateral structures

Abstract

Lateral spin valves, also known as nonlocal spin valves (NLSV), are mesoscopic structures where pure spin currents can be generated, transported over a distance, and detected as clear voltage signals. Due to the unique separation of the spin injector and the spin detector in laterally separated materials stacks, NLSV has been proposed as ultra-high density read head sensors to replace the standard spin valve read head sensors fabricated as single materials stacks. [1] In addition to magnetic recording applications, the lateral structures also provide a platform for novel memory and logic devices.