Text and Data Mining valid from 2018-08-06
Received: 25 April 2018
Accepted: 3 July 2018
First Online: 6 August 2018
Change Date: 31 January 2019
Change Type: Correction
Change Details: The original version of this Article contained errors in the second sentence in the legend of Fig. 1, which incorrectly read ‘These two elastic insulators are identical in lattice constant a (3a0), plate thickness (0.4a0), and radius of perforated holes r (0.18a0) but different hole-center distance characterized by b.’ The correct version states ‘plate thickness (√3 × 0.4a0)’ in place of ‘plate thickness (0.4a0)’ and ‘radius of perforated holes r (√3 × 0.18a0)’ rather than ‘radius of perforated holes r (0.18a0)’.The first sentence of the ‘Sample preparation’ section of the Methods originally incorrectly read ‘Our samples are prepared exclusively on polished stainless-steel plates (Type 201, mass density 7803 kg mSuperscript removed) with a fixed plate thickness 7.82 mm.’ In the corrected version, ‘mass density 7903 kg mSuperscript removed’ replaces ‘mass density 7803 kg mSuperscript removed’.The second sentence in the legend of Supplementary Fig. 3, originally incorrectly read ‘The symmetry of the phononic crystal remains unchanged as C6ν, and thickness of the substrates H (equals to 0.4a0), lattice constant a (equals to 3a0) and radius of perforated holes r (equals to 0.18 a0) maintain constant.’ The correct version states ‘√3 × 0.4a0’ in place of ‘0.4a0’ and ‘√3 × 0.18a0’ rather than ‘0.18a0’.This has been corrected in both the PDF and HTML versions of the Article.
: The authors declare no competing interests.