Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Signatures of Polar Metal Phase in the Quasi-2D Electron System in PLD-Grown Amorphous-Epitaxial Oxide Heterostructures.

Nano letters·2025
Same author

Dual Ferroelectric Polarization and Dielectric Response Improvement in Epitaxial Hf<sub>0.5</sub>Zr<sub>0.5</sub>O<sub>2</sub>/HfO<sub>2</sub> Nanolaminates.

ACS applied materials & interfaces·2025
Same author

THz Generation by Two-Color Plasma: Time Shaping and Ultra-Broadband Polarimetry.

Sensors (Basel, Switzerland)·2024
Same author

Toxic Effect of Metal Doping on Diatoms as Probed by Broadband Terahertz Time-Domain Spectroscopy.

Molecules (Basel, Switzerland)·2022
Same author

Coherent THz Hyper-Raman: Spectroscopy and Application in THz Detection.

Materials (Basel, Switzerland)·2019
Same author

Surface structures with unconventional patterns and shapes generated by femtosecond structured light fields.

Scientific reports·2018

Related Experiment Video

Updated: Jul 25, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.3K

Optical Second Harmonic Generation on LaAlO3/SrTiO3 Interfaces: A Review.

Andrea Rubano1,2, Domenico Paparo2

  • 1Physics Department "E. Pancini", University Federico II, Monte S. Angelo, Via Cintia, 80126 Naples, Italy.

Materials (Basel, Switzerland)
|June 28, 2023
PubMed
Summary

New electronic materials like perovskite oxides offer exciting possibilities beyond semiconductor limits. LaAlO3/SrTiO3 interfaces unexpectedly form a conductive 2D electron gas, driving research into its properties and potential applications.

Keywords:
2D electron gasnon-linear opticsperovskite hetero-structures

More Related Videos

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

17.3K
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

11.6K

Related Experiment Videos

Last Updated: Jul 25, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.3K
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

17.3K
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

11.6K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Semiconductor technology is approaching fundamental limits, necessitating exploration of novel materials.
  • Perovskite oxide heterostructures exhibit unique interfacial properties due to charge, spin, orbital, and lattice rearrangements.
  • Lanthanum aluminate/Strontium titanate (LaAlO3/SrTiO3) heterostructures serve as a model system for studying these phenomena.

Purpose of the Study:

  • To review the current research landscape of LaAlO3/SrTiO3 interfaces and their emergent properties.
  • To highlight the formation and characteristics of the two-dimensional electron gas (2DEG) at these interfaces.
  • To discuss the potential and future directions for research in this field.

Main Methods:

  • Investigation of interfacial electronic band structure.
  • Analysis of the transverse plane spatial homogeneity of samples.
  • Study of the ultrafast dynamics of confined carriers.
  • Application of optical Second Harmonic Generation (SHG) for interface sensitivity.

Main Results:

  • Discovery of a conductive two-dimensional electron gas (2DEG) at the LaAlO3/SrTiO3 interface for LaAlO3 thickness ≥ 4 unit cells.
  • The 2DEG is confined to a very thin layer (1-few monolayers) on the SrTiO3 side.
  • Second Harmonic Generation (SHG) proves effective for probing buried interfaces.

Conclusions:

  • The LaAlO3/SrTiO3 interface is a rich system for fundamental research in condensed matter physics.
  • Further investigation is needed to fully understand the interfacial electronic structure and carrier dynamics.
  • Optical techniques like SHG offer powerful tools for advancing the study of such complex interfaces.