Semiconductor heterostructure studies using emerging technologies

Yoshiro Hirayama, Tetsuomi Sogawa, Kyoichi Suzuki, Kiyoshi Kanisawa, Hiroshi Yamaguchi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Low-temperature scanning tunnelling microscopy (LT-STM), surface acoustic wave (SAW), and mechanical cantilever are used to measure and manipulate quantum characteristics in semiconductor heterostructures. A nanoscale detection of local density of states is demonstrated for electrons confined in semiconductor quantum wells and dots by a combination of InAs-based heterostructures and LT-STM. The SAW is used to realize moving quantum wires and dots in semiconductor heterostructures. A synchronized optical measurement confirms two types of modulation, i.e. bandgap and potential modulations. A combination of mechanical cantilever and quantum heterostructures gives a new mechanical functionality and a novel tool to analyse quantum transport characteristics.

Original languageEnglish
Pages (from-to)2988-3001
Number of pages14
JournalPhysica Status Solidi (B) Basic Research
Volume244
Issue number8
DOIs
Publication statusPublished - 2007 Aug 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Semiconductor heterostructure studies using emerging technologies'. Together they form a unique fingerprint.

Cite this