Fig. 5: NMR, THz, and EPR spectra.
From: Twisting, untwisting, and retwisting of elastic Co-based nanohelices
a Solid-state 1H NMR spectra of the nanorods, nanohelices and nanorods after dehydration at 180 °C; b THz time-domain spectra and c THz frequency-domain spectra of the nanorods and nanohelices (pinhole as the background/reference); d, e EPR spectra of the nanorods and nanohelices excited at a frequency of 212 and 428 GHz.
