Table 1 The character table of the distortion group m m2.

From: The antisymmetry of distortions

 

1

2*

m

m*

Kernel

Γ 1

1

1

1

1

m*m2*

Γ 2

1

1

−1

−1

2*

Γ 3

1

−1

1

−1

m

Γ 4

1

−1

−1

1

m*

  1. The four one-dimensional irreducible representations (irreps), Γ1–Γ4, represent four distinct types of perturbations to a distortion pathway with m*m2* symmetry. Each irrep has a kernel symmetry shown in the last column.
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