Crystal Potentials from Channeling Radiation—A First Principles Calculation
We evaluate the potential seen by MeV electrons channeled along the (110) planes in silicon. The exchange and correlation effects among the electrons of the target crystal are included in the local density approximation of density functional theory using the Linear Muffin-Tin Orbital (LMTO) method. The planar potential and the corresponding channeling radiation frequencies calculated by numerically solving the Schrödinger equation with this planar potential agree very well with channeling radiation experiments.
KeywordsLocal Density Approximation Root Mean Square Amplitude Channeling Radiation Crystal Potential Planar Potential
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