Quantum longitudinal and Hall transport at the LaAlO3/SrTiO 3 interface at low electron densities

Yanwu Xie, Christopher Bell, Minu Kim, Hisashi Inoue, Yasuyuki Hikita, Harold Y. Hwang

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

We examined the magneto-transport behavior of electrons confined at the conducting LaAlO3/SrTiO3 interface in the low sheet carrier density regime. We observed well-resolved Shubnikov-de Haas quantum oscillations in the longitudinal resistance, and plateau-like structures in the Hall conductivity. The Landau indices of the plateaus in the Hall conductivity data show spacing close to 4, in units of the quantum of conductance. These experimental features can be explained by a magnetic breakdown transition, which quantitatively explains the area, structure, and degeneracy of the measured Fermi surface.

Original languageEnglish
Pages (from-to)25-29
Number of pages5
JournalSolid State Communications
Volume197
DOIs
Publication statusPublished - 2014 Nov
Externally publishedYes

Keywords

  • A. Quantum oscillations
  • B. Two-dimensional electron gas
  • C. Magnetic breakdown
  • D. Strontium titanate

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Quantum longitudinal and Hall transport at the LaAlO<sub>3</sub>/SrTiO <sub>3</sub> interface at low electron densities'. Together they form a unique fingerprint.

Cite this