AASERT: Rare Earth Arsenides, Magnetic Semi-Metal Epitaxy for Opto-Electronics

Abstract

Substantial effort was used for designing, constructing and commissioning the 'In-situ Atomic Level Growth and Characterization Facility', whose capital equipment was funded by an AFOSR DURIP (AF/F49620-98-1-0341). An ultra-high vacuum sample transfer system and a variable temperature scanning tunneling microscope were attached to two already existing molecular beam epitaxy systems and surface science equipment. In-situ sample transfer between the different systems allowed for better sample fabrication and characterization. The scanning tunneling microscope demonstrated atomic resolution images of gallium arsenide and erbium arsenide single crystal surfaces. A technique for controlling interfacial reactions and phase formation was developed for controlling metal penetration depth and electrical properties of elemental metal contacts on gallium arsenide. One student received a Masters Degree in Materials Science.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2000
Accession Number
ADA392742

Entities

People

  • Chris J. Palmstrøm

Organizations

  • University of Minnesota

Tags

DTIC Thesaurus Topics

  • Compound Semiconductors
  • Crystal Growth
  • Crystals
  • Electrical Properties
  • Epitaxial Growth
  • Gallium Arsenides
  • Materials
  • Materials Science
  • Metallic Compounds
  • Metals
  • Microscopes
  • Molecular Beam Epitaxy
  • Molecular Beams
  • Phase Transformations
  • Semiconductors
  • Transition Temperature
  • Vacuum

Fields of Study

  • Physics

Readers

  • Integrated Circuit Design and Technology.
  • Materials Science and Engineering.
  • Research Science/Academic Research

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene