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

3.5K
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...
3.5K
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

2.9K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
2.9K
Valence Bond Theory02:42

Valence Bond Theory

11.6K
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...
11.6K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.7K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the involved orbitals. The...
1.7K
Metallic Solids02:37

Metallic Solids

21.3K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
21.3K

You might also read

Related Articles

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

Sort by
Same author

Soret-Effect Induced Phase-Change in a Chromium Nitride Semiconductor Film.

ACS nano·2024
Same author

Simple Ge/Si bilayer junction-based doping-less tunnel field-effect transistor.

Nanotechnology·2022
Same author

Effectiveness of a Flexible and Continuous Case Management Program for Suicide Attempters.

International journal of environmental research and public health·2020
Same author

Development and Validation of a Short-Form Internet Overuse Screening Questionnaire for Adults.

European addiction research·2020
Same author

Predictors of Cognitive Improvement during 12 Weeks of Antidepressant Treatment in Patients with Major Depressive Disorder.

Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology·2018
Same author

Internet Game Addiction, Depression, and Escape From Negative Emotions in Adulthood: A Nationwide Community Sample of Korea.

The Journal of nervous and mental disease·2017

Related Experiment Video

Updated: Mar 25, 2026

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

15.1K

Thermally robust perpendicular Co/Pd-based synthetic antiferromagnetic coupling enabled by a W capping or buffer

Ja-Bin Lee1, Gwang-Guk An1, Seung-Mo Yang1

  • 1Novel Functional Materials and Device Lab., Research Institute of Convergence of Basic Science, Department of Physics, Hanyang University, Seoul, 133-791, South Korea.

Scientific Reports
|February 19, 2016
PubMed
Summary

We enhanced the thermal stability of synthetic antiferromagnetic (SAF) frames for spintronic devices using a W layer. This improves Co/Pd multilayer SAFs, enabling robust perpendicular magnetic anisotropy (PMA) for advanced applications.

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

10.3K
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

Related Experiment Videos

Last Updated: Mar 25, 2026

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

15.1K
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

10.3K
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

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Spintronics

Background:

  • Perpendicularly magnetized tunnel junctions (p-MTJs) are crucial for spintronic devices.
  • Co/Pd multilayer SAFs offer excellent perpendicular magnetic anisotropy (PMA).
  • Thermal instability during annealing limits Co/Pd SAF integration with CoFeB reference layers.

Purpose of the Study:

  • To improve the thermal robustness of Co/Pd multilayer SAFs.
  • To investigate the use of a W layer as a buffer or capping layer.
  • To enable reliable integration of SAFs with CoFeB reference layers for spintronic applications.

Main Methods:

  • Fabrication of Co/Pd multilayer SAFs with W capping or buffer layers.
  • High-temperature annealing studies up to 425°C.
  • Structural analysis (e.g., X-ray diffraction) to assess crystalline properties.
  • Magnetic characterization to evaluate antiferromagnetic coupling and magnetic properties.

Main Results:

  • W-capped Co/Pd SAFs showed stable pinning layer behavior with sharp spin-flip and near-zero remanence.
  • Annealing at 400°C resulted in single-crystal-like c-axis orientation in W-capped SAFs.
  • Using W as a buffer layer enhanced annealing stability to 425°C and improved antiferromagnetic coupling with CoFeB.

Conclusions:

  • The W layer significantly enhances the thermal stability and structural integrity of Co/Pd multilayer SAFs.
  • W-interfaced SAFs demonstrate suitability for high-temperature processing in spintronic device fabrication.
  • This approach overcomes limitations of CoFeB integration, paving the way for more reliable PMA-based spintronic devices.