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Study of magnetic semiconductor

Grant number: 06/01194-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2006
Effective date (End): April 30, 2007
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal researcher:Marcio Alberto Araujo Pudenzi
Grantee:Tiago Illipronti Girardi
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

GaMnAs is a diluted magnetic semiconductor having potential application in spintronic. On this project, we will study the magnetic properties of Mn+As co-implanted GaAs samples, with different Mn implantation energies, and under different rapid thermal processing conditions. A Superconducting Quantum Interference Device (SQUID) magnetometer will be used for measuring sample magnetization as a function of temperature, after zero field cooling and field cooling, and hysteresis curve. Electrochemical C-V profiling and Secondary Ion Mass Spectrometry will be used for depth profiling of carriers and Mn, respectively. The student must learn how to operate the equipments, to perform the measurements and to participate in the analysis of the experimental results.

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