Accession Number : ADP008051

Title :   Stability of Metallic Superlattices,

Corporate Author : LAWRENCE LIVERMORE NATIONAL LAB CA

Personal Author(s) : Turchi, P.E.A. ; Sluiter, M.

Report Date : 05 MAR 1992

Pagination or Media Count : 4

Abstract : With the constant progress made in designing and manufacturing materials with composition modulation in one dimension on an atomic scale, artificial superlattices have opened up new opportunities to study both theoretically and experimentally a wide range of properties. This new class of materials consist of a sandwich of layers of different species or mixtures thereof, and with the development of atom by atom deposition techniques, composition, layer repeat period, growth orientation and chemical order may be controlled. Such atomic engineering has led to the discovery of new phenomena such as the supermodulus effect, giant magneto-resistance effect and also complex phenomena at or near interfaces such as solid state amorphization. Moreover, unusual properties are expected in one dimensional quasiperiodic multilayers.

Descriptors :   *MATERIALS, *SUPERLATTICES, *STABILITY, *METALS, ATOMS, CHEMICALS, CHEMISTRY, CONSTANTS, DEPOSITION, DISLOCATIONS, ENGINEERING, EXTERNAL, GRADIENTS, INTERFACES, LAYERS, MAGNETOS, MANUFACTURING, MIXTURES, MODULATION, ONE DIMENSIONAL, RESISTANCE, SCALE, SOLIDS, THERMODYNAMICS, MAGNETORESISTANCE, STRAIN(MECHANICS), DEFECTS(MATERIALS), ALLOYS, THREE DIMENSIONAL.

Subject Categories : Properties of Metals and Alloys
      Crystallography
      Laminates and Composite Materials
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE