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

Superconductor01:24

Superconductor

2.1K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
2.1K
Types Of Superconductors01:28

Types Of Superconductors

1.9K
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
1.9K
Magnetic Fields01:27

Magnetic Fields

8.1K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
8.1K
Electric Field Inside a Conductor01:20

Electric Field Inside a Conductor

8.2K
When a conductor is placed in an external electric field, the free charges in the conductor redistribute and very quickly reach electrostatic equilibrium. The resulting charge distribution and its electric field have many interesting properties, which can be investigated with the help of Gauss's law.
Suppose a piece of metal is placed near a positive charge. The free electrons in the metal are attracted to the external positive charge and migrate freely toward that region. This region then...
8.2K
Electric Field at the Surface of a Conductor01:26

Electric Field at the Surface of a Conductor

5.8K
Consider a conductor in electrostatic equilibrium. The net electric field inside a conductor vanishes, and extra charges on the conductor reside on its outer surface, regardless of where they originate.
In the 19th century, Michael Faraday conducted the famous ice pail experiment to prove that the charges always reside on the surface of a conductor. The experimental set-up consists of a conducting uncharged container mounted on an insulating stand. The outer surface of the container is...
5.8K
Magnetostatic Boundary Conditions01:28

Magnetostatic Boundary Conditions

1.9K
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...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Observation of Acoustic Magnetochiral Anisotropy in α Quartz.

Physical review letters·2026
Same author

Dimensionality of the reinforced superconductivity in UTe<sub>2</sub>.

Nature communications·2025
Same author

Electronic Hong Ou Mandel interferences to unveil the 2/3 fractional quantum Hall edge channel dynamics.

Nature communications·2025
Same author

Coulomb Sensing of Single Ballistic Electrons.

Physical review letters·2025
Same author

On-Chip Quantum Sensing of Kondo Spins in a High-Mobility Quasi-One-Dimensional Nanoconstriction.

Nano letters·2025
Same author

Photo-induced chirality in a nonchiral crystal.

Science (New York, N.Y.)·2025

Related Experiment Video

Updated: Apr 19, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

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

Published on: August 2, 2019

10.5K

Anomalous critical fields in quantum critical superconductors.

C Putzke1, P Walmsley1, J D Fletcher2

  • 1H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK.

Nature Communications
|December 6, 2014
PubMed
Summary

Quantum critical fluctuations near antiferromagnetism influence superconductivity in iron pnictides. Anomalies in critical fields suggest enhanced vortex energy and unusual vortex states in these quantum critical superconductors.

More Related Videos

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

8.7K
Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
04:51

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

Published on: July 8, 2021

3.3K

Related Experiment Videos

Last Updated: Apr 19, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

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

Published on: August 2, 2019

10.5K
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

8.7K
Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
04:51

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

Published on: July 8, 2021

3.3K

Area of Science:

  • Condensed Matter Physics
  • Quantum Materials Science

Background:

  • Antiferromagnetic quantum critical fluctuations are theorized to drive unconventional and high-temperature superconductivity.
  • Understanding this mechanism is crucial for advancing superconductor research.
  • The iron-pnictide BaFe2(As(1-x)P(x))2 serves as a key model system for studying quantum critical superconductivity.

Purpose of the Study:

  • To investigate the impact of quantum critical fluctuations on the superconducting critical fields in BaFe2(As(1-x)P(x))2.
  • To identify anomalies in superconducting behavior near a quantum critical point (QCP).

Main Methods:

  • Experimental study of the iron-pnictide superconductor BaFe2(As(1-x)P(x))2.
  • Analysis of superconducting critical fields (lower and upper) in proximity to the QCP.

Main Results:

  • Observed unexpected anomalies in both lower and upper superconducting critical fields.
  • The critical fields deviate from predictions based on conventional theory and mass enhancement near the QCP.
  • Evidence suggests an enhancement of superconducting vortex energy.

Conclusions:

  • The proximity to an antiferromagnetic QCP leads to anomalous superconducting critical fields.
  • Microscopic mixing of antiferromagnetism and superconductivity may enhance vortex energy.
  • A highly unusual vortex state is realized in these quantum critical superconductors.