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Table 3 The resulting average grain sizes \(\langle d \rangle \) for the top and the bottom Al layers for the four different sample groups A–D

From: Correlation between Al grain size, grain boundary grooves and local variations in oxide barrier thickness of Al/AlOx/Al tunnel junctions by transmission electron microscopy

Sample group

A

B

C

D

\(\hbox {t}_{{\mathrm{ox}}}\) (min)

10

10

30

30

\(\hbox {p}_{{\mathrm{ox}}}\) (mbar)

0.01

0.1

0.01

0.1

\(\langle d \rangle _{{\mathrm{t}}}\) (nm)

125

135

83

82

\(\langle d \rangle _{{\mathrm{b}}}\) (nm)

24

27

29

30