Transport behaviors and mechanisms in cuspidal blockade region for silicon single-hole transistor

Youngmin Lee, Sejoon Lee, Toshiro Hiramoto

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The Si single-hole transistor displays the anomalously-extended cuspidal blockade region, which is elongated toward the 45 -tilted direction normal to gate vs. drain bias voltage regions in the Coulomb blockade diagram. This is attributed to the formation of an ultra small Si quantum dot (QD) into the gate-all-around (GAA) stack. Namely, the large one-electron-addition energy (= 447 meV) from the 2-nm-size Si QD enables the clear Coulomb-blockade events at room temperature, and the large voltage gain from the GAA stack allows the cuspidal extension of the blockade region through the renormalization of Coulomb-blockade energies at the adjacent bias points near the initial Coulomb-blockade state.

Original languageEnglish
Pages (from-to)428-432
Number of pages5
JournalCurrent Applied Physics
Volume14
Issue number3
DOIs
StatePublished - Mar 2014

Keywords

  • Coulomb blockade oscillation
  • Extended blockade regime
  • Negative differential conductance
  • Room temperature operation
  • Silicon single-hole transistor

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