NICOP - Coherent Collective Dynamics of Spin Torque Nano-Oscillators for Microwave Signal Generation
Abstract
This research is aimed at building and testing (in realistic noisy environments) a prototype array of coupled spin torque nano-oscillators. Spintronics – the emergingnd testing (in realistic noisy environments) a prototype array of coupled spin torque nano-oscillators. Spintronics – the emerging science that seeks to exploit the intrinsic spin of the electron, is ushering in a range of new magnetic sensors, random access mem science that seeks to exploit the intrinsic spin of the electron, is ushering in a range of new magnetic sensors, random access memories, magnetic logic devices and providing a spin-based vision for the electronics of the future such as spin transistors with gainories, magnetic logic devices and providing a spin-based vision for the electronics of the future such as spin transistors with gain based on magnetic logic. A rapid convergence in magnetic information storage and processing technologies is emerging. The emergen based on magnetic logic. A rapid convergence in magnetic information storage and processing technologies is emerging. The emergence of spin-transfer physics over the last decade has improved fundamental understanding of the interactions of the electrons and magce of spin-transfer physics over the last decade has improved fundamental understanding of the interactions of the electrons and magnetism and enabled new approaches for current-controlled magnetism at the nano-scale. The direct injection of spin-polarized electronetism and enabled new approaches for current-controlled magnetism at the nano-scale. The direct injection of spin-polarized electrons into a nano-magnet transfers the angular moments from the electron which facilitates a local torque on the magnetization. This spns into a nano-magnet transfers the angular moments from the electron which facilitates a local torque on the magnetization. This spin torque can oppose the intrinsic damping of the magnetic layer exciting steady state oscillations, forming a spin torque nano-osciin torque can oppose the intrinsic damping of the magnetic layer exciting steady state oscillations, forming a spin torque nano-oscillator (STNO), and, for sufficient current strengths, reverse the magnetization direction. B. The fabrication of coupled nano-spintronic pillars to generate coherent microwave for communication transmission, if developed, will allow a pencil-beam transmission wntronic pillars to generate coherent microwave for communication transmission, if developed, will allow a pencil-beam transmission where there is very low probability for unwanted interception. This beam is like a laser beam for light but in the microwave frequenhere there is very low probability for unwanted interception. This beam is like a laser beam for light but in the microwave frequency where it finds many DoD applications for various communication requirements. To do this, it would take thousands to pillars on acy where it finds many DoD applications for various communication requirements. To do this, it would take thousands to pillars on a chips to generate the power necessary for signal transmission. The Romanian lab has the facility to produce these nano-pillars and chips to generate the power necessary for signal transmission. The Romanian lab has the facility to produce these nano-pillars and we just finished the theoretical work on ways to couple these pillars so as to produce coherent signal to form the beam
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 21, 2018
- Source ID
- N629091612160
Entities
People
- Nicoleta Lupu
Organizations
- Office of Naval Research
- United States Navy