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Paper detail

A heterojunction modulation-doped Mott transistor

A heterojunction Mott field effect transistor (FET) is proposed that consists of an epitaxial channel material that exhibits an electron-correlation-induced Mott metal-to-insulator transition. The Mott material is remotely (modulation) doped with a degenerately doped conventional band insulator. An applied voltage modulates the electron transfer from the doped band insulator to the Mott material and produces transistor action by inducing an insulator-to-metal transition. Materials parameters from rare-earth nickelates and SrTiO3 are used to assess the potential of the "modulation-doped Mott FET" (ModMottFET or MMFET) as a next-generation switch. It is shown that the MMFET is characterized by unique "charge gain" characteristics as well as competitive transconductance, small signal gain and current drive.

preprint2011arXivOpen access
Junwoo SonSiddharth RajanSusanne StemmerS. James Allen
cond-mat.str-elcond-mat.mtrl-sci
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Junwoo SonSiddharth RajanSusanne StemmerS. James Allen

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