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

Ferromagnetism01:31

Ferromagnetism

3.0K
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...
3.0K
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

4.5K
Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
4.5K
Magnetic Field Due To A Thin Straight Wire01:28

Magnetic Field Due To A Thin Straight Wire

6.1K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
6.1K
Magnetic Damping01:17

Magnetic Damping

1.0K
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...
1.0K
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.6K
An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
1.6K
Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

765
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
765

You might also read

Related Articles

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

Sort by
Same author

Clinical features and long-term surgical outcomes of ureteral endometriosis with hydroureteronephrosis: a retrospective study.

BMC women's health·2026
Same author

Comparing incidence of heart failure in individuals with enlarged cardiac chambers versus diabetes.

American journal of preventive cardiology·2026
Same author

Leaching kinetics and mechanisms in efficient chlorination leaching of germanium-rich fume dust.

RSC advances·2026
Same author

Chaperone-Mediated Autophagy-Directed Degradation of PI3K in Tumor Cells: Development of Multifunctional Peptide-Drug Conjugates With Enhanced Penetration and Selectivity.

Archiv der Pharmazie·2026
Same author

AI-quantified Myosteatosis at CAC CT for Prediction of Atrial Fibrillation and Heart Failure: The Multi-Ethnic Study of Atherosclerosis.

Radiology. Cardiothoracic imaging·2026
Same author

CD90 mediates gastric cancer immune evasion though regulating IGF2BP2 to stabilize the m6A-CD47/SIRPα axis.

Cancer cell international·2026

Related Experiment Video

Updated: Jan 15, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.9K

Quasi-Second-Order Martensitic Phase Transition by Flexomagnetic Coupling.

Yechao Ling1,2, Chenyu Zhang3,4, Xiao Yu2

  • 1School of Electronic and Information Engineering, Suzhou Polytechnic University, Suzhou 215104, China.

Nano Letters
|October 6, 2025
PubMed
Summary

Researchers reduced hysteresis in Ni-Mn-Sn Heusler alloys using strain gradients. This improves performance for magnetic refrigeration and microscale smart systems by enabling a quasi-second-order phase transition.

Keywords:
Heusler alloymartensitic transformationphase transitionstrain gradient

More Related Videos

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

15.0K
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.5K

Related Experiment Videos

Last Updated: Jan 15, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.9K
Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
12:20

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

15.0K
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.5K

Area of Science:

  • Materials Science
  • Condensed Matter Physics

Background:

  • Heusler alloys exhibit first-order martensitic transformations, limiting applications due to intrinsic hysteresis and narrow operating temperatures.
  • These limitations hinder their use in smart metallic components and energy-efficient devices.

Purpose of the Study:

  • To mitigate hysteresis and broaden the operating temperature range in Ni-Mn-Sn Heusler alloy thin films.
  • To enhance magnetic properties and refrigeration capacity through controlled strain gradients.

Main Methods:

  • Introduction of inhomogeneous strain gradients into wrinkled Ni-Mn-Sn Heusler alloy thin films.
  • Investigation of flexomagnetic coupling effects on phase transitions and magnetic properties.

Main Results:

  • Achieved a quasi-second-order martensitic transformation with significantly reduced hysteresis (ΔThysteresis = 3.7 K).
  • Observed enhanced ferromagnetic interaction and broadened operating temperature window (To = 260 K) for magnetic entropy change.
  • Reported substantial improvements in saturation magnetization (Ms = 71.3 emu/g) and effective refrigeration capacity (RCeff = 340.6 J·kg-1 at 50 kOe).

Conclusions:

  • Inhomogeneous strain gradients offer a viable strategy for designing advanced phase-transition materials.
  • The developed approach shows promise for applications in magnetic refrigeration and microscale smart systems.