Raman spectroscopy of alpha-FeOOH (goethite) near antiferromagnetic to paramagnetic phase transition

M. V. Abrashev, V. G. Ivanov, B. S. Stefanov +3

Synthetic powder, ore samples and mineral single crystals of goethite ($\alpha -$FeOOH) were investigated with polarized Raman spectroscopy at temperatures from 300 K to 473 K. The symme…