Jove
Visualize
Contact Us

Related Concept Videos

Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

47.1K
sp3d and sp3d 2 Hybridization
47.1K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.5K
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,...
1.5K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

64.6K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
64.6K
Hydrogen Bonds01:04

Hydrogen Bonds

12.7K
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
12.7K
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

1.7K
A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
1.7K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

1.4K
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
1.4K

You might also read

Related Articles

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

Sort by
Same author

A Novel Electrocatalyst Pd(II)@Ni<sub>3</sub> (HITP)<sub>2</sub> for Ultrasensitive Detection of Chloramphenicol: Experimental and Computational Investigation.

Chemistry (Weinheim an der Bergstrasse, Germany)·2023
Same author

Generating large out-of-plane piezoelectric properties of atomically thin MoS<sub>2</sub><i>via</i> defect engineering.

Physical chemistry chemical physics : PCCP·2021
Same author

Discovery and Facile Synthesis of a New Silicon Based Family as Efficient Hydrogen Evolution Reaction Catalysts: A Computational and Experimental Investigation of Metal Monosilicides.

Small (Weinheim an der Bergstrasse, Germany)·2021
Same author

First-principles investigation of the hydrogen evolution reaction on different surfaces of pyrites MnS<sub>2</sub>, FeS<sub>2</sub>, CoS<sub>2</sub>, NiS<sub>2</sub>.

Physical chemistry chemical physics : PCCP·2019
Same author

The cysteine-free single mutant C32S of APEX2 is a highly expressed and active fusion tag for proximity labeling applications.

Protein science : a publication of the Protein Society·2019
Same journal

Localization and delocalization of defect states in 2D polyaramid with carbon and nitrogen vacancies.

Physical chemistry chemical physics : PCCP·2026
Same journal

The impact of macrocyclization: electronic structures and excited state dynamics of pillar[4]arene[1]quinone.

Physical chemistry chemical physics : PCCP·2026
Same journal

Tuning the transport properties of penta-graphene nanoribbons.

Physical chemistry chemical physics : PCCP·2026
Same journal

High-throughput screening of M-based layered compounds as solid-state electrolytes for chloride-ion batteries.

Physical chemistry chemical physics : PCCP·2026
Same journal

Lower bound of the capacitance of constant phase elements based on electrochemical impedance spectra.

Physical chemistry chemical physics : PCCP·2026
Same journal

Stability constants of lanthanide-nitrate complexes in aqueous solutions: a theoretical study.

Physical chemistry chemical physics : PCCP·2026
See all related articles
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 Experiment Video

Updated: Dec 25, 2025

Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

14.2K

Multiferroic hydrogenated graphene bilayer.

Jo Hsueh Lee1, Cheng-Hung Cheng1, Bo-Rong Liao1

  • 1Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-sen University, Kaohsiung 804, Taiwan. albert@mail.nsysu.edu.tw.

Physical Chemistry Chemical Physics : PCCP
|April 2, 2020
PubMed
Summary
This summary is machine-generated.

Researchers explored multiferroic properties in hydrogenated graphene bilayers. This novel material exhibits robust ferroelectricity down to atomic thickness, tunable via strain, suggesting a promising two-dimensional multiferroic material.

More Related Videos

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
14:52

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

9.3K
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

860

Related Experiment Videos

Last Updated: Dec 25, 2025

Optimized Fabrication Procedure for High-Quality Graphene-based Moir&#233; Superlattice Devices
11:24

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

14.2K
Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
14:52

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

9.3K
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

860

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Quantum Chemistry

Background:

  • Graphene is a foundational two-dimensional material with diverse electronic properties.
  • Multiferroic materials exhibit coupled ferroelectric and magnetic orders, crucial for advanced electronic devices.
  • Achieving ferroelectricity in atomically thin materials remains a significant challenge.

Purpose of the Study:

  • To investigate the potential of hydrogenated graphene bilayers as a novel two-dimensional multiferroic material.
  • To explore the ferroelectric properties, including polarization, switching barrier, and stability.
  • To examine the tunability of ferroelectricity through mechanical strain.

Main Methods:

  • First-principles calculations were employed to model the hydrogenated graphene bilayer structure.
  • Analysis of electronic structure and atomic configurations to determine multiferroic characteristics.
  • Simulations of polarization switching, domain wall dynamics, and strain effects.

Main Results:

  • A hydrogenated graphene bilayer structure was proposed, breaking centrosymmetry and exhibiting ferroelectricity.
  • Calculated electric polarization of 0.137 × 10-10 C m-1 with a switching barrier of 393 meV per formula unit.
  • Ferroelectricity was confirmed to be stable down to atomic thickness and robust against room temperature fluctuations.
  • Polarization was effectively tuned by up to 20% using strain without altering the switching barrier.

Conclusions:

  • Hydrogenated graphene bilayers represent a promising, realizable two-dimensional multiferroic material.
  • The material demonstrates robust ferroelectric properties, stable at atomic thickness and room temperature.
  • Strain engineering offers an effective method for tuning the ferroelectric response in this system.