(a) (b)

0.2 µm0.5 µm

30 nm200 nm

(b)

(c)

(a)

0.2 µm0.5 µm

30 nm200 nm

10 µm

ZEISS2 µm EHT = 8.00 kV Signal A = Inlens Date: 9 Oct 2009WD = 3 mm Mag = 8.03 K X Time: 18:41:29

0.10 µm

X 130000

(a)(b)

(c) (d)

(a) (b)