Correction: Corrigendum: Structures, Phase Transitions and Tricritical Behavior of the Hybrid Perovskite Methyl Ammonium Lead Iodide

Scientific Reports 6: Article number: 35685; published online: 21 October 2016; updated: 21 February 2017.

In this Article, there are errors in the figure legends:

In Figure 6c:

‘Lattice parameters determined from the synchrotron X-ray diffraction scans of the cubic 200 and tetragonal 220/004 Bragg peaks. Fits to the cubic lattice parameter (black solid line) and the average tetragonal lattice parameter (=2atet + ctet)/3 (blue solid line), were used to determine the linear coefficients of thermal expansion of 1.95 × 10⁻⁴ K⁻¹ (cubic) and 2.66 × 10⁻⁴ K⁻¹ (tetragonal). The region of cubic and tetragonal phase coexistence can be clearly seen’.

Should read:

‘Lattice parameters determined from the synchrotron X-ray diffraction scans of the cubic 200 and tetragonal 220/004 Bragg peaks. Fits to the cubic lattice parameter (black solid line) and the average tetragonal lattice parameter (2atet + ctet)/3 (blue solid line), were used to determine the linear coefficients of thermal expansion of 35(1) × 10^–6 K⁻¹ for the cubic phase (324–350 K) and 42.4(4) × 10⁻⁶ K⁻¹ for the tetragonal phase (160–325 K). The region of cubic and tetragonal phase coexistence can be clearly seen’.

In Supplementary Figure 10a:

‘a) Lattice parameters as a function of temperature. The cubic lattice parameter (acub) and the average tetragonal lattice parameter (2atet + ctet)/3, were fit (blue and black solid lines, respectively) to extract the linear thermal expansion coefficients for the two phases, yielding 2.37(3) × 10⁻⁴ K⁻¹ for the cubic phase and 2.65(1) × 10⁻⁴ K⁻¹ for the tetragonal phase’

Should read:

‘a) Lattice parameters as a function of temperature. The cubic lattice parameter (acub) and the average tetragonal lattice parameter (2atet + ctet)/3, were fit (blue and black solid lines, respectively) to extract the linear thermal expansion coefficients for the two phases, yielding 37.6(5) × 10^–6 K⁻¹ for the cubic phase (328–350 K) and 42.2(3) × 10^–6 K⁻¹ for the tetragonal phase (160–325 K)’.