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

Types Of Superconductors01:28

Types Of Superconductors

1.7K
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...
1.7K
Superconductor01:24

Superconductor

1.9K
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...
1.9K
Ferromagnetism01:31

Ferromagnetism

3.2K
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...
3.2K
Colors and Magnetism03:02

Colors and Magnetism

14.3K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
14.3K
Valence Bond Theory02:42

Valence Bond Theory

11.4K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.4K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.5K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.5K

You might also read

Related Articles

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

Sort by
Same author

Picosecond ultralow-power switching device based on an antiferromagnet.

Science (New York, N.Y.)·2026
Same author

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Lattice softening and diffusive dynamics in the polar metal LiReO<sub>3</sub>.

Science advances·2026
Same author

Nonreciprocal Current-Induced Zero-Resistance State in Valley-Polarized Superconductors.

Physical review letters·2025
Same author

Superconductivity and suppressed monoclinic distortion in FeTe films enabled by higher-order epitaxy.

Nature communications·2025
Same author

Author Correction: A metallic p-wave magnet with commensurate spin helix.

Nature·2025

Related Experiment Video

Updated: Feb 25, 2026

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

Multipole Superconductivity in Nonsymmorphic Sr_{2}IrO_{4}.

Shuntaro Sumita1, Takuya Nomoto1, Youichi Yanase1

  • 1Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.

Physical Review Letters
|July 29, 2017
PubMed
Summary

Superconductivity in Sr2IrO4, a doped J_eff=1/2 Mott insulator, exhibits unusual properties linked to specific magnetic structures. These findings reveal novel superconducting gap structures and the stabilization of Fulde-Ferrell-Larkin-Ovchinnikov superconductivity.

More Related Videos

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

3.2K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

18.3K

Related Experiment Videos

Last Updated: Feb 25, 2026

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

3.2K
Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
08:53

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

18.3K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Materials

Background:

  • Sr2IrO4 exhibits similarities to high-temperature cuprate superconductors.
  • Several in-plane canted antiferromagnetic moment stacking patterns exist, including -++-, ++++, and -+-+.

Purpose of the Study:

  • To clarify unconventional features of superconductivity coexisting with -++- and -+-+ magnetic structures in Sr2IrO4.
  • To investigate the relationship between magnetic order, crystal symmetry, and superconducting properties.

Main Methods:

  • Group theoretical analysis.
  • Numerical calculations for an effective J_eff=1/2 model.
  • Analysis of magnetic space group symmetry and spin-orbit coupling effects.

Main Results:

  • Unusual superconducting gap structures are identified in the -++- magnetic state, protected by nonsymmorphic magnetic space group symmetry.
  • Fulde-Ferrell-Larkin-Ovchinnikov superconductivity is found to be inevitably stabilized in the -+-+ magnetic state.
  • The interplay between odd-parity magnetic order and spin-orbit coupling leads to asymmetric band structures.

Conclusions:

  • The observed unusual superconducting properties in Sr2IrO4 are signatures of magnetic multipole order in nonsymmorphic crystals.
  • This research highlights the crucial role of magnetic structure and symmetry in determining exotic superconducting states.