PT Journal AU Kauth, M Rosenkranz, S Said, AH Taddei, KM Wolf, T Weber, F TI Soft elastic constants from phonon spectroscopy in hole-doped Ba1−x(K,Na)xFe2As2 and Sr1−xNaxFe2As2 SO Physical review / B PY 2020 BP 144526 VL 102 IS 14 DI 10.1103/PhysRevB.102.144526 LA english ER