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

Thin-Walled Hollow Shafts

Thin-Walled Hollow Shafts

In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution of...

You might also read

Related Articles

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

Sort by

Same author

Landau-de Gennes modeling of confinement effects and cybotactic clusters in bent-core nematic liquid crystals.

Physical review. E·2026

Same author

Neural network-based tensor models for liquid crystals with molecular-level information.

Physical review. E·2026

Same author

Self-assembly of dipolar crystals from magnetic colloids.

Physical review. E·2025

Same author

Coarsening in bent-core liquid crystals: a molecular dynamics study.

Soft matter·2025

Same author

How smectic-A and smectic-C liquid crystals resolve confinement-induced frustration in spherical shells.

Soft matter·2024

Same author

Surface-directed dynamics in living liquid crystals.

Physical review. E·2024

Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026

Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026

Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026

Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026

Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026

Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 26, 2025

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Published on: November 20, 2014

Tailored morphologies in two-dimensional ferronematic wells.

Konark Bisht¹, Yiwei Wang², Varsha Banerjee¹

¹Department of Physics, Indian Institute of Technology, Delhi, Hauz Khas 110016, New Delhi, India.

Physical Review. E

|March 15, 2020

Summary

This summary is machine-generated.

This study shows how magnetic nanoparticle suspensions in nematics create spontaneous magnetization and controllable defects. Tailored morphologies are achieved through geometry and coupling, enabling multistable systems.

More Related Videos

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

Published on: January 28, 2018

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Published on: January 8, 2014

Related Experiment Videos

Last Updated: Dec 26, 2025

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Mechanical Expansion of Steel Tubing as a Solution to Leaky Wellbores

Published on: November 20, 2014

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

A Paired Bead and Magnet Array for Molding Microwells with Variable Concave Geometries

Published on: January 28, 2018

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Published on: January 8, 2014

Area of Science:

Physics
Materials Science
Soft Matter Physics

Background:

Nematic liquid crystals and magnetic nanoparticles are key components in advanced materials.
Understanding their coupled behavior is crucial for developing novel functional systems.
Spontaneous magnetization in such systems offers unique possibilities without external fields.

Purpose of the Study:

To investigate the spontaneous magnetization and defect formation in a magnetic nanoparticle-nematic system.
To explore how geometry, boundary conditions, and nanoparticle-nematic coupling influence system morphology.
To demonstrate the potential for creating tailored, multistable systems with controllable singularities and interfaces.

Main Methods:

Numerical simulations of a dilute uniform suspension of magnetic nanoparticles in a nematic-filled micron-sized shallow well.
Analysis of tangent boundary conditions and the coupling between magnetic nanoparticles and the host nematic medium.
Characterization of stable nematic and magnetization morphologies, including domain walls and defects.

Main Results:

The system exhibits spontaneous magnetization without applied magnetic fields.
Geometry and boundary conditions induce stable nematic and magnetization morphologies.
Domain wall locations are tunable via coupling and material properties.
Stable interior and boundary nematic defects can be precisely controlled by coupling.

Conclusions:

Tailored morphologies, including controllable defects and domain walls, are achievable through nanoparticle-nematic coupling.
These findings are not observed in uncoupled systems.
The developed system offers potential for applications in multistable devices utilizing singularities and stable interfaces.