Gate-defined two-dimensional hole and electron systems in an undoped InSb quantum well

Zijin Lei, Erik Cheah, Filip Krizek, Rüdiger Schott, Thomas Bähler, Peter Märki, Werner Wegscheider, Mansour Shayegan, Thomas Ihn, Klaus Ensslin

Research output: Contribution to journalArticlepeer-review

Abstract

Quantum transport measurements are performed in gate-defined, high-quality, two-dimensional hole and electron systems in an undoped InSb quantum well. For both polarities, the carrier systems show tunable spin-orbit interaction as extracted from weak antilocalization measurements. The effective mass of InSb holes strongly increases with carrier density as determined from the temperature dependence of Shubnikov-de Haas oscillations. Coincidence measurements in a tilted magnetic field are performed to estimate the spin susceptibility of the InSb two-dimensional hole system. The g factor of the two-dimensional hole system decreases rapidly with increasing carrier density.

Original languageEnglish (US)
Article number013117
JournalPhysical Review Research
Volume5
Issue number1
DOIs
StatePublished - Jan 2023

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Gate-defined two-dimensional hole and electron systems in an undoped InSb quantum well'. Together they form a unique fingerprint.

Cite this