Interfacial structure of lattice mismatched bcc(110)/bcc(110) transition metal superlattices

Conference · Mon Mar 01 00:00:00 EST 1993

OSTI ID:10162022

Fullerton, E E; Sowers, C H; Bader, S D; Mini, S ^[1]; Bommannavar, A S ^[2]; Ehrlich, S N ^[3]

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1. Argonne National Lab., IL (United States)
2. Brooklyn Coll., NY (United States)
3. Purdue Univ., Lafayette, IN (United States). School of Materials Engineering

We present structural characterizations of a series of sputtered Fe/Nb and V/Nb superlattices by high-angle x-ray diffraction. Diffraction scans were performed with the scattering vector at various angles ({Chi}) with respect to the layers. {Chi}=0{degrees} diffraction spectra (normal to the layers) were fitted to a general structural model to determine the (110) lattice strains, interfacial disorder and interdiffusion. {Chi}>0{degrees} spectra probe the lattice strain of the individual layers and the in-plane interfacial coherence. Both systems form incoherent interfaces above a critical modulation wavelength ({Lambda}{sub C}). At {Lambda}{sub C}, the Fe/Nb system undergoes a crystalline-to-amorphous transition while the V/Nb forms in-plane coherent interfaces.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10162022
• Report Number(s): ANL/XFD/CP-79634; CONF-930405-18; ON: DE93015162
• Resource Relation: Conference: Spring meeting of the Materials Research Society,San Francisco, CA (United States),12-16 Apr 1993; Other Information: PBD: Mar 1993
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
IRON
SUPERLATTICES
NIOBIUM
VANADIUM
SPUTTERING
X-RAY DIFFRACTION
INTERFACES
BCC LATTICES
NSLS
LAYERS
360102
STRUCTURE AND PHASE STUDIES