Patent ID: 7924107
Filing Date: 2011-04-12
Classification: H01L,H01Q

Abstract:
1. A resonant tunneling structure, comprising: a resonant tunneling structure layer including at least three tunnel barrier layers; and a first electrical contact layer and a second electrical contact layer each having a carrier, wherein the first electrical contact layer, the resonant tunneling structure layer and the second electrical contact layer are arranged in this order, wherein the resonant tunneling structure layer includes a first sub-band, a second sub-band, and a third sub-band which respectively have energies E wherein the resonant tunneling structure is such that where band edge energies of the first and second electrical contact layers relative to the carrier are expressed by E when no electric field is applied to the resonant tunneling structure, (E when a first electric field is applied to the resonant tunneling structure, the third sub-band and the second sub-band resonate with each other between the energy E when a second electric field different in polarity from the first electric field is applied to the resonant tunneling structure, the second sub-band and the first sub-band resonate with each other between the energy E