Hermann was the first woman to be appointed Professor at École Polytechnique in 1992.[5] She worked on the optical properties of solids, in particular the photo-emission of polarised electrons.[6][7] She developed techniques to optically measure the spin resonance in semiconductors.[8][9] She spent a year as a visiting researcher at Nagoya University in 1998.[10] She demonstrated the hole effective mass (0.051) of Indium gallium arsenide.[11]
She obtained[9] the value of the Landé g-factor g=-0.44 for electrons in Gallium Arsenide which is important for spin physics in the quantum Hall regime.
Alongside her research into condensed matter, Hermann worked to make the environment better for women physicists.[12][13] In 1999 she was appointed to the European Union Helsinki Group on women and science, and remained a member until 2006.[14] She co-founded the platform Femme & Sciences with Huguette Delavault in 2000.[1] She was a member of the expert group who produced the ETAN report on women in academia for the European Union in 2000. Hermann was also the President of Honour of the European Platform of Women Scientists.[15][16]
^Hermann, Claudine; Lampel, Georges (1971-08-16). "Measurement of the g Factor of Conduction Electrons by Optical Detection of Spin Resonance in p-Type Semiconductors". Physical Review Letters. 27 (7): 373–376. Bibcode:1971PhRvL..27..373H. doi:10.1103/PhysRevLett.27.373.
^ abWeisbuch, Claude; Hermann, Claudine (1977-01-15). "Optical detection of conduction-electron spin resonance in , , and ". Physical Review B. 15 (2): 816–822. doi:10.1103/PhysRevB.15.816.