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Functionally Graded Polar Heterostuctures: New Materials for Multifunctional Devices

  • Debdeep Jena
  • S. Pamir Alpay
  • Joseph V. Mantese

Mixing materials of different compositions is an ancient art. As early as 3000 B.C., metallic alloys - brass & bronze were used for sculpture work. Over the last century, major strides were made in the art of crystal growth of metals, dielectrics, and semiconductors. An alloy offers an opportunity to exploit physical, electrical, and optical properties of materials which are either intermediate, or absent in its constituent materials. This has been the driving force behind the study and discovery of new generations of alloys. With the advent of epitaxial growth techniques such as Molecular Beam Epitaxy (MBE) and Metal-Organic Chemical Vapor Deposition (MOCVD), such hybrid materials can now be engineered at the atomic scale.

Keywords

Spontaneous Polarization AlGaN Layer Piezoelectric Polarization Ionize Impurity Scattering Sheet Charge 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Debdeep Jena
    • 1
  • S. Pamir Alpay
    • 2
  • Joseph V. Mantese
    • 3
  1. 1.Department of Electrical EngineeringUniversity of Notre DameNotre DameUSA
  2. 2.Materials Science and Engineering Program & Institute of Materials SciencesUniversity of ConnecticutStorrsUSA
  3. 3.United Technologies Research CenterEast HartfordUSA

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