Positron-annihilation study of the equilibrium vacancy ensemble in aluminum

Conference · Tue Jun 01 04:00:00 EDT 1982

OSTI ID:6188230

Fluss, M J; Berko, S; Chakraborty, B; Hoffmann, K; Lippel, P; Siegel, R W

A preliminary report is presented of a positron-annihilation study of the equilibrium vacancy ensemble in aluminum using one- and two-dimensional angular correlation of annihilation radiation (ACAR) measurements versus temperature. The annihilation characteristics of a positron from the Bloch state, and the monovancy- and divacancy-trapped states have been calculated self-consistently within a supercell, including many-body enhancement effects, and are compared with experiment. 4 figures.

• Research Organization: Brandeis Univ., Waltham, MA (USA). Dept. of Physics; Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6188230
• Report Number(s): CONF-820434-19; ON: DE83007623
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALUMINIUM
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
BLOCH THEORY
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HIGH TEMPERATURE
INTERACTIONS
LEPTONS
MEDIUM TEMPERATURE
METALS
POINT DEFECTS
POSITRONS
TEMPERATURE DEPENDENCE
VACANCIES