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

3.2K
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
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
Diamagnetism01:26

Diamagnetism

3.1K
Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets....
3.1K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.7K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.7K
Colors and Magnetism03:02

Colors and Magnetism

14.2K
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...
14.2K
Paramagnetism01:30

Paramagnetism

3.0K
Paramagnets are materials with unpaired electrons that possess a finite magnetic moment. In the absence of a magnetic field, these moments are randomly oriented, and thus the net moment is zero. Under an external field, a torque acting on the moments tends to align them along the field's direction. However, the random thermal motion of electrons produces a torque opposite to the external field and tries to disorient the moments. These two competing effects align only a few moments along the...
3.0K

You might also read

Related Articles

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

Sort by
Same author

Association of Inflammatory Markers with Mortality in COVID-19 Infection.

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP·2020
Same author

Frequency and genotype distribution of high risk human papillomavirus in esophageal squamous cell carcinoma.

Journal of infection in developing countries·2020
Same author

Spectral and Energy Efficient Low-Overhead Uplink and Downlink Channel Estimation for 5G Massive MIMO Systems.

Entropy (Basel, Switzerland)·2020
Same author

Endocytosis: a pivotal pathway for regulating metastasis.

British journal of cancer·2020
Same author

Pyogenic granuloma-like Kaposi sarcoma presenting in an HIV-negative man who has sex with men.

BMJ case reports·2020
Same author

Sugiol, a diterpenoid: Therapeutic actions and molecular pathways involved.

Pharmacological research·2020

Related Experiment Video

Updated: Feb 19, 2026

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials
04:57

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

1.1K

Hydrogen functionalization induced two-dimensional ferromagnetic semiconductor in Mn di-halide systems.

M Umar Farooq1, Imran Khan, Mohammed Moaied

  • 1Department of Physics, Pukyong National University, Busan 608-737, Korea. hongj@pknu.ac.kr.

Physical Chemistry Chemical Physics : PCCP
|October 31, 2017
PubMed
Summary

Hydrogenation of manganese di-halides (MnY2) creates ferromagnetic semiconductors. This functionalization breaks magnetic degeneracy, yielding a stable ferromagnetic ground state for spintronics applications.

More Related Videos

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.1K
Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
10:45

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

Published on: February 5, 2022

4.6K

Related Experiment Videos

Last Updated: Feb 19, 2026

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials
04:57

Residue-Free Fabrication of van der Waals Heterostructures of Two-Dimensional Materials

Published on: July 18, 2025

1.1K
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
15:58

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing

Published on: December 3, 2013

6.1K
Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
10:45

Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition

Published on: February 5, 2022

4.6K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Chemistry

Background:

  • Two-dimensional (2D) manganese di-halides (MnY2) exhibit weak magnetic exchange interactions and degenerate magnetic states.
  • Pristine MnY2 monolayers possess high magnetic moments (5 μB) and finite band gaps, but lack stable magnetic ordering.

Purpose of the Study:

  • To investigate the electronic and magnetic properties of pristine MnY2 and hydrogenated MnHY2 systems.
  • To explore the effects of hydrogen functionalization on the magnetic exchange interactions and electronic band structure.
  • To assess the potential of these materials for spintronic applications.

Main Methods:

  • Theoretical exploration of electronic and magnetic properties using computational methods.
  • Analysis of band structure, magnetic moments, and spin polarization.
  • Comparison of pristine MnY2 with hydrogenated MnHY2 structures.

Main Results:

  • Pristine MnY2 monolayers show degenerate ferromagnetic (FM) and antiferromagnetic states.
  • Hydrogenation of MnY2 to MnHY2 breaks the magnetic degeneracy, resulting in a stable FM ground state.
  • Hydrogenation induces negative spin polarization on H atoms, reducing Mn magnetic moments to 4 μB and enhancing spin-dependent band gaps.

Conclusions:

  • Hydrogen functionalization is a viable strategy to engineer magnetic properties in 2D materials.
  • The hydrogenated MnHY2 systems exhibit promising ferromagnetic semiconductor characteristics.
  • MnHY2 materials are potential candidates for future spintronic devices.