A nanostructured nonlinear electronic material that operates at room temperature and 50 GHz
Abstract
By arrangement of nanometer-sized symmetry-breaking elements into a two-dimensional lattice, a new class of artificial functional material is constructed. The nanomaterial is fabricated using electron beam lithography and wet chemical etching on a high electron-mobility InGaAs/InP quantum well structure. We show that the nanomaterial exhibits intrinsic nonlinear electronic functionality and therefore functions also as a two-dimensional ratchet. The distance between neighboring elements is small enough to be comparable to the electron mean free path at room temperature, and therefore operations of the nanomaterial without using any cryogenic or other cooling have been realized. Since it is a material, we show that individual devices can be made by simply cutting pieces according to requirements for different applications. We also demonstrate that these devices operate at frequencies at least up to 50 GHz. Therefore, this novel nanomaterial is expected to be used in real high-frequency applications such as detection and second harmonic generation, etc.
- Publication:
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APS March Meeting Abstracts
- Pub Date:
- March 2001
- Bibcode:
- 2001APS..MARR40147S