Phonon band structure (supercell [2, 2, 2], Δ=0.01 Å); imaginary modes detected; min freq = -0.91 THz
Relaxed with Orb v3; 0.03 eV/Å threshold; final energy = -92.0260 eV; energy change = -0.9237 eV; symmetry: Cmmm → Cmmm
