April 21, 2015

Electrons Move Like Light in Three-Dimensional Solid

Tracking electronic motion in a graphene-like bulk material shows fast electrons in all dimensions.

(April 21, 2015)  Electrons were observed to travel in a solid at an unusually high velocity, which remained the same independent of the electron energy. This anomalous light-like behavior is found in special two-dimensional materials, such as graphene, but is now realized in a three-dimensional bulk material. High-resolution angle-resolved electron spectroscopy, stimulated by synchrotron x-ray radiation, was used to substantiate the theoretically predicted exotic electron structure.

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