Atomic-scale imaging of frequency-dependent phonon anisotropy
Schubert, M. et al. Anisotropy, phonon modes, and free charge carrier parameters in monoclinic β-gallium oxide single crystals.…
Measurement of phonon angular momentum
Einstein, A. & de Haas, W. J. Experimental proof of the existence of Ampère’s molecular currents. KNAW Proc.…