Individual nanostructure magneto-transport measurements

• Grant number: 19/11161-1
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): October 01, 2019
• Effective date (End): September 30, 2020
• Field of knowledge: Engineering - Electrical Engineering - Electrical, Magnetic and Electronic Measurements, Instrumentation
• Principal Investigator: Fanny Béron
• Grantee: João Luiz de Oliveira Pacheco
• Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 17/10581-1 - Emergent phenomena in reduced dimension systems, AP.TEM

Abstract

The objective of this project is to permit the obtaining of high precision measurements of the electrical resistance of individual magnetic nanostructures. By varying the applied magnetic field, and thus the magnetic organization, we can reach the magneto-transport properties of the nanostructure. The knowledge and characterization of this behavior is fundamental for the later use of the nanostructures fabricated and studied in the Laboratory of Materials and Low Temperatures (LMBT), located at the Institute of Physics Gleb Wataghin (IFGW) in UNICAMP. Being mainly nanowires, the compositions are chosen to obtain promising properties for spintronic devices. In this context, a new homemade equipment of magneto-electrical measurements will be mounted to replace the one currently used. Taking advantage of devices of better precision and sensitivity, it will allow to facilitate the obtaining of curves of good quality, essential to compete in the world-wide scene.