Quasielastic Moessbauer spectroscopy and quasielastic neutron scattering from non-Bravais lattices with differently occupied sublattices

Journal Article · Fri Apr 01 00:00:00 EST 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.49.8768· OSTI ID:5014046

Randl, O G; Sepiol, B; Vogl, G; Feldwisch, R ^[1]; Schroeder, K ^[2]

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1. Institut fuer Festkoerperphysik der Universitaet Wien, A-1090 Wien (Austria)
2. Institut fuer Festkoerperforschung der Kernforschungsanlage Juelich, D-52425 Juelich (Germany)

We present the full theory for the quasielastic line broadening in Moessbauer spectroscopy and incoherent neutron scattering, caused by atomic jumps in a non-Bravais lattice, the sublattices of which are differently occupied. As a demonstration, the theory is applied to two cases that have been studied experimentally: iron diffusion in cubic Fe[sub 65]Al[sub 35], an ordered [ital B]2 (CsCl) structure (examined by Moessbauer spectroscopy), and nickel diffusion in hcp Ni[sub 53]Sb[sub 47], an ordered [ital B]8 (NiAs) structure (incoherent neutron scattering).

• OSTI ID: 5014046
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 49:13; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL LATTICES
MOESSBAUER EFFECT
ALUMINIUM ALLOYS
ANTIMONY ALLOYS
BINARY ALLOY SYSTEMS
DIFFUSION
INCOHERENT SCATTERING
IRON BASE ALLOYS
LINE BROADENING
NEUTRON BEAMS
NICKEL BASE ALLOYS
QUASI-ELASTIC SCATTERING
ALLOY SYSTEMS
ALLOYS
BEAMS
CRYSTAL STRUCTURE
DIRECT REACTIONS
IRON ALLOYS
NICKEL ALLOYS
NUCLEAR REACTIONS
NUCLEON BEAMS
PARTICLE BEAMS
QUASI-FREE REACTIONS
SCATTERING
665100* - Nuclear Techniques in Condensed Matter Physics - (1992-)