Electron tunneling in MIS capacitors with the MBE-grown fluoride layers on Si(111) and Ge(111): Role of transverse momentum conservation
The currentvoltage characteristics of the metalinsulatorsemiconductor tunneling structures with calcium fluoride are simulated using different theoretical models. The results are compared to the data of current measurements on the fabricated capacitors with 13nm epitaxial fluorides. Best agreement is achieved imposing a condition of transverse momentum k? conservation for a tunneling electron. This fact may be treated as an experimental proof for the k? conservation in the examined high-quality structures which was not directly confirmed on more traditional structures with oxide dielectrics.
mis capacitors transverse momentum conservation calcium fluoride tunneling current tunnel emitter phototransistor