Correlation of homoepitaxial growth of high-T/sub c/ A15 Nb/sub 3/Ge with characteristics of substrate surface

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00682729· OSTI ID:6218671

Kuwasawa, Y; Nakano, S

Metastable Nb/sub 3/Ge films were prepared by coevaporation in an ultrahigh vacuum with homoepitaxial growth onto Nb-rich A15 Nb--Ge base layers having two types of surface characteristics: one was formed with a two-phase mixture of Nb--Ge and NbO, and the other had a clean Nb--Ge phase without any impurities. The homoepitaxial films grown on the former surface had more stable and reproducible higher T/sub c/ features than did those made on the latter surface. Compositional analysis near and at the interface between the homoepitaxial film and the base layer was made by Auger electron spectroscopy for representative samples and the oxide formed on the base layer was investigated by x-ray photoelectron spectroscopy.

• Research Organization: Department of Physics, Faculty of Science, Chiba University, Chiba, Japan
• OSTI ID: 6218671
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 61:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
AUGER ELECTRON SPECTROSCOPY
BETA-W LATTICES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ENERGY LEVELS
EPITAXY
EXCITED STATES
FILMS
GERMANIUM COMPOUNDS
IONIZING RADIATIONS
METASTABLE STATES
NIOBIUM COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
RADIATIONS
REFRACTORY METAL COMPOUNDS
SPECTROSCOPY
SUBSTRATES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X RADIATION