. 2014 Jun 19;4:5353. doi: 10.1038/srep05353

Table 1. Films thickness vs transport properties and STM findings.

Nominal Thickness [nm]	Measured Thickness [nm]	M-I Transition	MR @ RT	Atomic Resolution @ RT
2	(2.2 ± 0.1)^a	NO	NO	YES
4	(3.7 ± 0.1)^a	<RT	NO	YES
6	(6 ± 1)^b	RT	YES	NO
13	(15 ± 2)^b	>RT	YES	NO
25	(20 ± 2)^b	>RT	YES	NO
70	(75 ± 5)^b	>RT	YES	NO

^aby direct XRR measurement;

^bby profilometer-based calibration.