Suppression of atomic displacive excitation in photo-induced A${}_{1g}$ phonon mode of bismuth unveiled by low-temperature time-resolved x-ray diffraction

Y. Kubota, Yoshikazu Tanaka, T. Togashi +7

An ultrafast atomic motion of a photo-induced coherent phonon of bismuth at low temperatures was directly observed with time-resolved x-ray diffraction. A cryostat with a window th…