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

Ferromagnetism

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...

Magnetic Damping

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...

Damped Oscillations

Damped Oscillations

In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...

Strain-Energy Density

Strain-Energy Density

Understanding the strain energy density in materials under axial load is crucial for evaluating their mechanical behavior and durability. When a rod is subjected to such a load, it elongates and stores energy, known as strain energy, as potential energy within the material. This energy is measured in terms of energy per unit volume.
In the elastic region of a material, the relationship between the stress and the strain is linear and follows Hooke's Law. The strain energy density in this region...

Plastic Behavior

Plastic Behavior

A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...

Stress-Strain Diagram - Ductile Materials

Stress-Strain Diagram - Ductile Materials

The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...

You might also read

Related Articles

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

Sort by

Same author

Conductance modulation in graphene/antiferromagnet van der Waals heterostructures induced by magnetic order.

Nanoscale·2025

Same author

Field-induced demagnetisation of bisegmented cylindrical ferromagnetic nanowires mediated by skyrmion tubes.

Nanoscale·2025

Same author

Unveiling the 3D Spin Texture of Nanowires Using Integrated Microscopy Techniques.

Nano letters·2025

Same author

Lattice variation upon water adsorption in silica opals measured by <i>in situ</i> atomic force microscopy.

Nanoscale advances·2025

Same author

Probing geometry-induced magnetic defects in cylindrical modulated nanowires with optically detected spin resonance in nitrogen-vacancy center in diamond.

Nanoscale·2024

Same author

Magnetic imaging of individual magnetosome chains in magnetotactic bacteria.

Biomaterials advances·2024

Search research articles

Related Experiment Video

Updated: Mar 13, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

Negative dissipation gradients in hysteretic materials.

Miriam Jaafar¹, Óscar Iglesias-Freire², Pedro García-Mochales³

¹Instituto de Ciencia de Materiales de Madrid-CSIC, 28049 Madrid, Spain. aasenjo@icmm.csic.es.

|October 11, 2016

Summary

Researchers found that increasing interaction between nanomagnets counter-intuitively reduces energy dissipation when spins align. This discovery aids understanding magnetic dynamics for applications in data storage and sensors.

More Related Videos

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

Published on: May 2, 2016

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

Published on: September 23, 2018

Related Experiment Videos

Last Updated: Mar 13, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

Published on: May 2, 2016

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

Published on: September 23, 2018

Area of Science:

Nanoscale science and technology
Condensed matter physics
Materials science

Background:

Understanding energy dissipation is crucial for nanomechanics and energy conversion efficiency in devices.
Magnetic dynamics and dissipation in nanomagnets are relevant for magnetic recording, sensors, and hyperthermia treatments.

Purpose of the Study:

To investigate the relationship between nanomagnet interaction and energy dissipation.
To explore the underlying mechanisms of energy loss in interacting nanomagnets.

Main Methods:

Experimental measurements of energy dissipation at the nanoscale.
Quasi-static micromagnetic numerical simulations.

Main Results:

Observed a monotonic reduction in energy dissipation with enhanced interaction between two nanomagnets.
This counter-intuitive behavior occurs when the spins are parallel.
Measured magnetic losses were in the femtowatt range.

Conclusions:

Enhanced interaction can lead to reduced energy dissipation in specific nanomagnet configurations.
Hysteresis phenomena during spin reorientation explain the observed reduction in magnetic losses.
Findings contribute to fundamental understanding and technological applications of nanomagnetism.