Published January 1974 | Version v1
Journal article

Electronmicroscopic evidence for a columnar-void-type structure in sputtered NbN films

  • 1. Cornell University, Bard Hall, Ithaca, New York 14850

Description

Transmission electron microscopy of sputtered NbN films shows that the films contain columnar grains with an average axial diameter of 100 Å or less. A large number of narrow (≈ 20 Å) voids separate most of the grains. The voids extend through the film and are probably responsible for the strong pinning observed in these films. The high resistivity and relatedly the high upper critical field values of the films are also believed to be due to this columnar-void structure.

Additional details

Identifiers

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
45
Journal Issue
1
Series
J. Appl. Phys.
Journal Page Range
465-466
ISSN
0021-8979

Optional Information

Notes
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