High-Temperature Ferromagnetism in Cr- and Mn-Implanted Al(sub x)Ga(sub 1-x)N

Abstract

The purpose of this research is to investigate the magnetic properties of Cr- and Mn implanted AlxGa1-xN along with their electrical and optical properties. The objective of the research is to determine optimal conditions for fabricating thin films of AlxGa1-xN that display ferromagnetism. Although recent advances in ion-implantation doping of group-III nitrides with Cr and Mn are making progress, efficient and controlled doping of AlxGa1-xN with Cr and Mn by the ion implantation technique remains a challenging problem. Therefore, we have performed a systematic investigation of annealing temperature effects on magnetic, electrical, and optical properties of Cr-, Mn-, and Ni-implanted AlxGa1-xN to produce a good, thermally stable, single phase, room temperature, ferromagnetic AlGaCrN, AlGaNiN, and/or AlGaMnN.

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Document Details

Document Type
Technical Report
Publication Date
Sep 23, 2007
Accession Number
ADA474971

Entities

People

  • Mee-yi Ryu

Organizations

  • Kangwon National University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Annealing
  • Crystal Lattices
  • Epitaxial Growth
  • Ferromagnetic Materials
  • Ferromagnetism
  • Films
  • High Temperature
  • Ion Implantation
  • Magnetic Fields
  • Magnetic Moments
  • Magnetic Properties
  • Magnetometers
  • Materials
  • Optical Properties
  • Semiconductors
  • Spintronics
  • Wide Bandgap Semiconductors

Fields of Study

  • Materials science

Readers

  • Semiconductor Device Technology
  • Superconducting Magnet Technology
  • Thin Film Deposition Science.