PRESSURE DEPENDENCE OF THE ELASTIC SHEAR CONSTANTS OF LI

Abstract

The elastic shear constants C equals C sub 44 and C' equals 1/2 (C sub 11-C sub 12) of Li were measured as a function of pressure at room temperature. The measured values of the quantitydln C/dln r are, C equals 4.1; and C' equals 2.8. This inequality of the two pressure variations is contrary to the situation found in Na, where the two coefficients were equal. Theoretically, the two coefficients are expected to be the same, if only the electrostatic interaction between the electrons and the ions is responsible for the elastic stiffness of the metal. The different behavior in Li can be understood in terms of the extra contribution to the shear constants arising due to the change in the Fermi energy of the electrons on shearing. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1961
Accession Number
AD0255142

Entities

People

  • A.l. Jain

Organizations

  • Case Western Reserve University

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Electrons
  • Fermi Levels
  • Inequalities
  • Physical Properties
  • Stiffness

Readers

  • Linear Algebra
  • Mechanical Engineering/Mechanics of Materials.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene