DOI: 10.1038/ncomms12505

Corrigendum: Observation of a topological crystalline insulator phase and topological phase transition in Pb1 xSnxTe Su-Yang Xu, Chang Liu, N. Alidoust, M. Neupane, D. Qian, I. Belopolski, J.D. Denlinger, Y.J. Wang, H. Lin, L.A. Wray, G. Landolt, B. Slomski, J.H. Dil, A. Marcinkova, E. Morosan, Q. Gibson, R. Sankar, F.C. Chou, R.J. Cava, A. Bansil & M.Z. Hasan Nature Communications 3:1192 doi: 10.1038/ncomms2191 (2012); Published 13 Nov 2012; Updated 4 Aug 2016 In Fig. 2a and d of this Article, a uniform background subtraction was applied to the ARPES low-energy electronic structure measurements. In Fig. 2d, this background subtraction unintentionally was only applied to the central part of the figure. This affected the noise in the background but not the meaningful signal data features discussed in the paper, and therefore does not affect any conclusion of the paper. To avoid potential confusion, in the updated version of Fig. 2a and d, raw data without any background subtraction are presented. The corrected version of Fig. 2 appears below as Fig. 1. The figure legend is correct.

NATURE COMMUNICATIONS | 7:12505 | DOI: 10.1038/ncomms12505 | www.nature.com/naturecommunications

1

CORRIGENDUM

NATURE COMMUNICATIONS | DOI: 10.1038/ncomms12505

a

b 0.0 X

EB (eV)

ky (Å–1)

0.2 x = 0.2

0.0 L6–



hv=10 eV

0.6

0.1

hv=24 eV 1.3 0.5 0.9 kx (Å–1)

hv=24 eV

0.6

0.8

kz =π

kz =5/4π

0.2

0.4 –0.1 0.0 0.1

–0.1 0.0 0.1 δk = k–k (X )

0.4 x = 0.4

0.0 X

0.0 +

L6





X

hv=10 eV

0.6

0.8

Inv.

L6

f X





X





X

0.2

0.4

hv=10 eV –

–0.1 0.0 0.1

High

e EB (eV)

ky (Å–1)



X

hv=18 eV

kz =1/2π

0.0

Low

0.0

kz =1/2π

hv=24 eV

hv=18 eV

0.8 0.6 kx (Å–1) kz =π

0.6

0.8 kz =5/4π

0.0

–0.4 0.1

EB (eV)

ky (Å–1)



0.0

–0.2

d



X

0.6 0.8 kx (Å–1)

0.8

c X

EB (eV)

ky (Å–1)

L6+



0.2

0.4

hv=10 eV



X

hv=24 eV 1.3 0.5 0.9 kx (Å–1)

0.2

0.4 –0.1 0.0 0.1

–0.1 0.0 0.1 δk = k–k (X )

–0.1 0.0 0.1

Figure 1

2

NATURE COMMUNICATIONS | 7:12505 | DOI: 10.1038/ncomms12505 | www.nature.com/naturecommunications

Corrigendum: Observation of a topological crystalline insulator phase and topological phase transition in Pb1-xSnxTe.

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