Structure and oscillational motion of /sup 57/Fe atoms in interstitial sites in Al as determined from interference of Moessbauer. gamma. radiation

Journal Article · Tue Dec 01 00:00:00 EST 1981 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(81)90391-1· OSTI ID:5484392

Pauling, L

The first excited site of the /sup 57/Fe atom entrapped in an interstitial site in aluminum, as reported by W. Petry, G. Vogl, and W. Mansel (Phys. Rev. Lett. 45, 1862 (1980)) from a Moessbauer spectroscopic study of a single crystal, is analyzed by consideration of the value of the Hooke's law constant of the Fe-Al bonds obtained from the values for elemental Fe and Al. The eight wavefunctions for the eightfold nearly degenerate excited state are described as 2s1p1d1f hybrids of three-dimensional harmonic oscillator wavefunctions relative to the center of the undistorted Al/sub 6/ octahedron or as localized 1s functions relative to the center of the distorted octahedron. These considerations provide a qualitative understanding of the observations on this system.

• Research Organization: Linus Pauling Inst. of Science and Medicine, Palo Alto, CA
• OSTI ID: 5484392
• Journal Information: J. Solid State Chem.; (United States), Vol. 40:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
IRON 57
MOESSBAUER EFFECT
ACTIVATION ENERGY
ATOMS
COMPLEXES
EXCITED STATES
GAMMA RADIATION
HYBRIDIZATION
INTERSTITIALS
MOESSBAUER SPECTROMETERS
MONOCRYSTALS
OSCILLATION MODES
TEMPERATURE DEPENDENCE
TRAPPING
ULTRALOW TEMPERATURE
WAVE FUNCTIONS
CRYSTAL DEFECTS
CRYSTALS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
ENERGY LEVELS
EVEN-ODD NUCLEI
FUNCTIONS
GAMMA SPECTROMETERS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
IRON ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
METALS
NUCLEI
POINT DEFECTS
RADIATIONS
SPECTROMETERS
STABLE ISOTOPES
360102* - Metals & Alloys- Structure & Phase Studies