Thesis Title

Growth and Characterization of Inorganic/Organic Spintronic Devices

Date of Graduation

Spring 2005

Degree

Master of Science in Materials Science

Department

Physics, Astronomy and Materials Science

Committee Chair

Kartik Ghosh

Keywords

spintronics, memory, devices, organic, inorganic, thermal evaporator

Subject Categories

Materials Science and Engineering

Abstract

Spintronics is a new branch of electronics based on quantum effects. It utilizes carriers spin transfer instead of carriers charge transfer known in the electronic world. The advantages of transporting spin of electron without loss of energy or dissipation with the consequential prospect of generating new computing of generating new computing devices make research in spintronics inevitable. Emphasis for now is focused on discovering new materials suitable for injecting and transferring carriers with a preferential spin orientation at room temperature. Inorganic/Organic spintronic devices have various applications such as storage and memory devices, spin transistors, light emitting spin valves and GMR devices for sensors. Tri-layers structure of ferromagnetic/organic/ferromagnetic devices have been grown using the Thermal Evaporator and Pulsed Laser Deposition System. Co/PHP/Ni-Fe alloy of 500Å/ 500Å-1000Å/500Å thickness has shown good electronic properties from its I-V measurements. Also GMR of 4%-100% was achieved during the magneto-transport characterization using a four-probe technique in the presence of magnetic field at room temperature. The results indicate that Co/PHP/Ni-Fe alloy heterostructure is promising and valuable for applications in spintronic devices and sets foundation for further research work.

Copyright

© Temitope O. Kassim

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Dissertation/Thesis

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