Scientific Reports 6: Article number: 36931; published online: 14 November 2016; updated: 25 January 2017

This Article contains typographical errors.

In Table 1, information for Sample S has been omitted for columns 1, 2, 3, 4, 6 and 7. These should all read ‘0.5’. The correct table appears below.

Table 1

In Equation (2),

should read

In the Methods section,

‘The primary thickness of the samples was 10 mm (To).’

should read:

‘The primary thickness of the samples was 10 mm (T0).’