High-frequency electron paramagnetic resonance of metal-containing porphyrin compounds using a microcantilever

(left) Photo of the piezoresistive microcantilever. A blue-colored sample mounted on the cantilever end is a microcrystal of copper tetraphenyl porphyrin (CuTPP). (right) High-frequency electron paramagnetic resonance data of CuTPP for three different frequencies of 80, 90, and 105 GHz.188