Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Imperfections in Crystal Structure: Stoichiometric Point Defects

Imperfections in Crystal Structure: Stoichiometric Point Defects

Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...

Imperfections in Crystal Structure: Point, Line and Plane Defects

Imperfections in Crystal Structure: Point, Line and Plane Defects

A perfect crystal, in theory, has a uniform structure with the same unit cell and lattice points throughout. However, any deviation from this periodic arrangement is known as an imperfection or defect. These defects can be categorized into three types: point, line, and plane defects.Point defects occur when there is a deviation from the ideal due to missing atoms, displaced atoms, or additional atoms. These imperfections might occur due to imperfect packing during crystallization or because of...

Imperfections in Crystal Structure: Non-Stoichiometric Defects

Imperfections in Crystal Structure: Non-Stoichiometric Defects

Non-stoichiometric defects refer to a type of defect in the crystal structure of a compound where the ratio of its constituent elements deviates from the ideal stoichiometric ratio. There are two main types of non-stoichiometric defects: metal excess defects and metal deficiency defects.Metal excess defects occur when there is a slight surplus of metal ions than what is required by the stoichiometric ratio of the compound. For example, heating a sodium chloride crystal in sodium vapor results...

You might also read

Related Articles

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

Sort by

Same author

Phonon Signatures in Photon Correlations.

Physical review letters·2023

Same author

Particle-like topologies in light.

Nature communications·2021

Same author

Point-dipole approximation for small systems of strongly coupled radiating nanorods.

Scientific reports·2019

Same author

Erratum: Emergence of Correlated Optics in One-Dimensional Waveguides for Classical and Quantum Atomic Gases [Phys. Rev. Lett. 117, 143602 (2016)].

Physical review letters·2018

Same author

Many-Body Subradiant Excitations in Metamaterial Arrays: Experiment and Theory.

Physical review letters·2017

Same author

Erratum: Core Structure and Non-Abelian Reconnection of Defects in a Biaxial Nematic Spin-2 Bose-Einstein Condensate [Phys. Rev. Lett. 117, 275302 (2016)].

Physical review letters·2017

Search research articles

Related Experiment Video

Updated: May 18, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Topological interface engineering and defect crossing in ultracold atomic gases.

Magnus O Borgh¹, Janne Ruostekoski

¹School of Mathematics, University of Southampton, SO17 1BJ, Southampton, United Kingdom. M.O.Borgh@soton.ac.uk

Physical Review Letters

|October 4, 2012

Summary

We present a new method for topological interface engineering using atomic spin structures and controlled interactions. This allows for studying complex topological states and defect dynamics in spinor Bose-Einstein condensates.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

Related Experiment Videos

Last Updated: May 18, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

Area of Science:

Quantum physics
Condensed matter physics
Atomic physics

Background:

Topological phases of matter exhibit unique properties protected by topology.
Interfaces between distinct topological phases are crucial for fundamental studies and potential applications.
Controlling and engineering these interfaces remains a significant challenge.

Purpose of the Study:

To propose an experimentally feasible scheme for topological interface engineering.
To investigate the dynamics of topologically nontrivial interfaces.
To study the behavior of defects and textures across these engineered interfaces.

Main Methods:

Utilizing the internal spin structure of atoms.
Employing locally controlled interaction strengths.
Constructing a coherent interface between topologically distinct phases of spinor Bose-Einstein condensates.

Main Results:

Demonstration of a practical method for creating complex topological states.
Enabling the study of dynamics at topological interfaces.
Facilitating the observation of defect and texture perforation across interfaces.

Conclusions:

The proposed scheme offers a viable route for exploring topological quantum matter.
This work opens new avenues for investigating quantum dynamics and topological phenomena.
The method is applicable to spinor Bose-Einstein condensates, a versatile quantum system.