Macroscopic quantum interference in an ultra-pure metal

Fig. The second derivative of the resistivity highlights the oscillatory part of the magnetoresistance. For this sample, an oscillation period of 1 Tesla was found. MPI CPfS - That visible light holds the character of a wave can be demonstrated in simple optics experiments, or directly witnessed when rainbows appear in the sky. Although the subtle laws of quantum mechanics, that is, wave mechanics, ultimately govern all the processes of electron transportelectrons in solids, their wave-like nature of the electrons is not often apparent to the casual observer. A classical picture of electrons as solid particles goes surprisingly far in explaining electric currents in metals. As high school students see in experiments with water waves, and we observe and use with light waves in many optical devices, interference is a fundamental property associated with wave-like behavior.