Parallel Quantum-Point-Contacts as High-Frequency-Mixers

Details Parallel Quantum-Point-Contacts as High-Frequency-Mixers Parallel Quantum-Point-Contacts as High-Frequency-Mixers

1997-05-30

arxiv.org/abs/cond-mat/9705308v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 figures, RevTeX, to be published in the 16 June 1997 issue of Applied Physic Letters

Scientific paper

10.1063/1.119139

We present the results of high-frequency mixing experiments performed upon parallel quantum point-contacts defined in the two-dimensional electron gas of an Al_{x}Ga_{1-x}As/GaAs-heterostructure. The parallel geometry, fabricated using a novel double-resist technology, enables the point-contact device to be impedance matched over a wide frequency range and, in addition, increases the power levels of the mixing signal while simultaneously reducing the parasitic source-drain capacitance. Here, we consider two parallel quantum point-contact devices with 155 and 110 point-contacts respectively; both devices operated successfully at liquid helium and liquid nitrogen temperatures with a minimal conversion loss of 13 dB.

Affiliated with

Also associated with

No associations

Rating

Parallel Quantum-Point-Contacts as High-Frequency-Mixers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Parallel Quantum-Point-Contacts as High-Frequency-Mixers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parallel Quantum-Point-Contacts as High-Frequency-Mixers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-64731