D.N. McIlroy, D. Heskett, et al.
Physical Review B
Paper
Novel transport effects in high-bias ballistic-electron-emission spectroscopy
Abstract
Pronounced structure at large biases in the ballistic-electron-emission- microscopy (BEEM) current for Cr/GaP(110) is attributed to density-of-states effects in GaP. Quasielastic scattering at the Cr-GaP interface appears vital for the effect. Impact ionization in the GaP is invoked to explain the unusually large collector currents that can exceed the injected STM tip current. © 1993 The American Physical Society.
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