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

Valence Bond Theory02:42

Valence Bond Theory

8.5K
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...
8.5K
Colors and Magnetism03:02

Colors and Magnetism

11.6K
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...
11.6K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

977
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
977

You might also read

Related Articles

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

Sort by
Same author

Multidirectional Spin-Orbit Torque Magnetization Dynamics in beyond Room Temperature Van der Waals Magnet Devices.

Nano letters·2026
Same author

Local structural distortions drive magnetic molecular field in compositionally complex spinel oxide.

Nature communications·2025
Same author

Coexisting Non-Trivial Van der Waals Magnetic Orders Enable Field-Free Spin-Orbit Torque Magnetization Dynamics.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

Enzyme graphene oxide interaction: the case system of β-lactamases.

RSC advances·2025
Same author

Tuning ultrafast demagnetization with ultrashort spin polarized currents in multi-sublattice ferrimagnets.

Nature communications·2025
Same author

Strong In-Plane Magnetization and Spin Polarization in (Co<sub>0.15</sub>Fe<sub>0.85</sub>)<sub>5</sub>GeTe<sub>2</sub>/Graphene van der Waals Heterostructure Spin-Valve at Room Temperature.

ACS nano·2024

Related Experiment Video

Updated: Jun 10, 2025

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

8.1K

Efficient spin filtering through Fe4GeTe2-based van der Waals heterostructures.

Masoumeh Davoudiniya1, Biplab Sanyal1

  • 1Department of Physics and Astronomy, Uppsala University Sweden Biplab.Sanyal@physics.uu.se.

Nanoscale Advances
|October 21, 2024
PubMed
Summary

Fe4GeTe2-based van der Waals heterostructures show promise for spintronic devices. Simulations predict high spin polarization (97%) and tunnel magnetoresistance (487%) in Fe4GeTe2/GaTe/Fe4GeTe2 structures.

More Related Videos

Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

9.4K
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

9.9K

Related Experiment Videos

Last Updated: Jun 10, 2025

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

8.1K
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

9.4K
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

9.9K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Spintronics

Background:

  • Van der Waals heterostructures offer tunable electronic properties.
  • Fe4GeTe2 (F4GT) is a ferromagnetic material with potential for spintronics.

Purpose of the Study:

  • Investigate spin-dependent electronic transport in F4GT-based van der Waals heterostructures.
  • Explore the potential of F4GT/GaTe/F4GT heterostructures for spintronic applications.

Main Methods:

  • Utilized *ab initio* simulations to study electronic transport.
  • Calculated electronic density of states and spin polarization.
  • Simulated transport through F4GT/PtTe2 and F4GT/GaTe/F4GT heterostructures.

Main Results:

  • F4GT exhibits ferromagnetic metallic behavior with weak interface interaction with PtTe2 electrodes.
  • Predicted 97% spin polarization in a double-layer F4GT/PtTe2 structure.
  • Achieved 487% tunnel magnetoresistance in F4GT/GaTe/F4GT heterostructures at low bias.

Conclusions:

  • F4GT-based van der Waals heterostructures demonstrate efficient spin filtering and high spin polarization.
  • F4GT/GaTe/F4GT heterostructures show significant potential for magnetic tunnel junctions in spintronic devices.
  • These findings highlight the advancement of spintronics using van der Waals materials.