Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Ferromagnetism

Ferromagnetism

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...

Valence Bond Theory

Valence Bond Theory

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...

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...

Colors and Magnetism

Colors and Magnetism

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...

Crystal Field Theory - Tetrahedral and Square Planar Complexes

Crystal Field Theory - Tetrahedral and Square Planar Complexes

Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...

Fermi Level Dynamics

Fermi Level Dynamics

The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...

You might also read

Related Articles

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

Sort by

Same author

Ferroelectric polarization-controlled hydrogen storage in heteroatom-functionalized graphene/In<sub>2</sub>Se<sub>3</sub> heterostructures.

Physical chemistry chemical physics : PCCP·2026

Same author

Design of Skyrmion Bags with Tunable Topology in Symmetry-Broken 2D Lattices.

ACS nano·2026

Same author

Mechanism of Dipole Moment Effect on the Schottky Barrier at Janus MoSH/MoSiGeN<sub>4</sub> Metal-Semiconductor Interfaces.

The journal of physical chemistry letters·2026

Same author

Chemical weathering processes in the north-south transition zone of China: A case study from the Danjiang River Basin.

Journal of environmental sciences (China)·2026

Same author

Comparative Efficacy of Different Aquatic Exercise Modalities on Cognitive Function in The Elderly: A Systematic Review and Network Meta-Analysis.

Journal of sports science & medicine·2026

Same author

Origin of Reversible Interlayer-Disorder-Induced Phase Transitions in Layered Sodium Manganese Oxide Cathodes.

Journal of the American Chemical Society·2026

Search research articles

Related Experiment Video

Updated: Dec 15, 2025

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

Multiferroic decorated Fe₂O₃ monolayer predicted from first principles.

Jing Shang¹, Chun Li², Xiao Tang¹

¹School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, QLD 4001, Australia. liangzhi.kou@qut.edu.au.

|July 8, 2020

Summary

Researchers discovered robust two-dimensional (2D) multiferroic behaviors in decorated iron oxide (Fe2O3) monolayers. Li@Fe2O3 exhibits coupled ferroelectricity and ferromagnetism, promising for nanoscale devices.

More Related Videos

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

Related Experiment Videos

Last Updated: Dec 15, 2025

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

Published on: October 5, 2013

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

Area of Science:

Condensed matter physics
Materials science
Nanotechnology

Background:

Two-dimensional (2D) multiferroics offer coupled magnetic and electric properties for nanoscale devices.
Developing 2D multiferroic materials with desired characteristics remains challenging.

Purpose of the Study:

To identify and characterize novel 2D multiferroic materials.
To elucidate the physical mechanisms behind multiferroicity in these materials.

Main Methods:

First-principles calculations were employed to investigate decorated Fe2O3 monolayers.
The study focused on identifying materials exhibiting robust multiferroic behaviors.

Main Results:

Decorated Fe2O3 monolayers demonstrate robust two-dimensional multiferroic properties.
Li@Fe2O3 was identified as a prototypical material, showing coupled ferroelectricity and ferromagnetism.
The origin of these properties was traced to Fe d-orbital splitting via Jahn-Teller distortion.

Conclusions:

The findings establish strong material phenomena in a new family of 2D multiferroics.
The underlying physics mechanism for coupled ferroelectricity and ferromagnetism is elucidated.
These 2D multiferroics hold significant promise for advanced nanoscale device applications.