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

Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

68.7K
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...
68.7K
Exceptions to the Octet Rule02:55

Exceptions to the Octet Rule

38.2K
Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
38.2K
VSEPR Theory and the Effect of Lone Pairs04:01

VSEPR Theory and the Effect of Lone Pairs

53.7K
Effect of Lone Pairs of Electrons on Molecule Geometry
53.7K
Fermi Level01:18

Fermi Level

2.1K
The Fermi-Dirac function is represented by an S-shaped curve indicating the probability of an energy state being occupied by an electron at a given temperature. The Fermi level is the energy level at which there is a fifty percent chance of finding an electron, and it is positioned between the lower-energy valence band and the higher-energy conduction band.
At absolute zero temperature, electrons fill all energy states up to the Fermi level, leaving upper states empty. As the temperature rises,...
2.1K
Hydroboration-Oxidation of Alkenes03:08

Hydroboration-Oxidation of Alkenes

11.9K
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
11.9K
Structure of Benzene: Molecular Orbital Model01:18

Structure of Benzene: Molecular Orbital Model

13.2K
According to the molecular orbital (MO) model, benzene has a planar structure with a regular hexagon of six sp2 hybridized carbons. As shown in Figure 1, each carbon is bonded to three other atoms with C–C–C and H–C–C bond angles of 120°. The C–H bond length is 109 pm, and the C–C bond length is 139 pm which is midway between the single bond length of sp3 hybridized carbons (154 pm) and sp2 hybridized carbons (133 pm).
13.2K

You might also read

Related Articles

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

Sort by
Same author

Realization of strongly correlated 2D honeycomb boron.

Science advances·2026
Same author

Toward Adversarial Robustness Network Intrusion Detection Based on Multi-Model Ensemble Approach.

Sensors (Basel, Switzerland)·2026
Same author

Origin of multiple skyrmion phases in EuAl<sub>4</sub>.

Nature communications·2026
Same author

Room-temperature two-dimensional multiferroic metal with voltage-controllable magnetic order.

Nature materials·2026
Same author

Realization of Iodinene with Tunable Topological Edge States and Flat Bands.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

The Effects of Neuromuscular Training and Additive Visual Biofeedback on Landing Biomechanics and Sensorimotor Brain Activity in Young Female Athletes.

Medicine and science in sports and exercise·2026

Related Experiment Video

Updated: Mar 6, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

8.4K

Dirac Fermions in Borophene.

Baojie Feng1, Osamu Sugino1, Ro-Ya Liu1

  • 1Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.

Physical Review Letters
|March 18, 2017
PubMed
Summary
This summary is machine-generated.

Researchers discovered that monolayer boron, specifically the β₁₂ sheet, hosts Dirac cones, similar to honeycomb structures. This finding opens possibilities for new electronic devices with high speed and low energy dissipation.

More Related Videos

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
13:09

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

15.4K
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

Related Experiment Videos

Last Updated: Mar 6, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

8.4K
Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
13:09

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

15.4K
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

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Solid-State Physics

Background:

  • Honeycomb lattices, such as those in group IV elements, are known to host massless Dirac fermions.
  • The search for novel Dirac materials, particularly in monolayer forms, is driven by their potential for advanced electronic applications.
  • Borophene, a 2D allotrope of boron, exhibits diverse structural phases with unique electronic properties.

Purpose of the Study:

  • To investigate the electronic structure of the β₁₂ borophene sheet.
  • To determine if the β₁₂ sheet can host Dirac cones.
  • To explore the impact of substrate interactions on the electronic properties of β₁₂ borophene.

Main Methods:

  • Tight-binding analysis to model the electronic band structure.
  • First-principles calculations for electronic structure validation.
  • Angle-resolved photoemission spectroscopy (ARPES) for experimental confirmation.

Main Results:

  • The β₁₂ borophene lattice can be decomposed into two triangular sublattices, enabling the formation of Dirac cones.
  • Periodic perturbations, simulating overlayer-substrate interactions, were shown to split the Dirac cones.
  • Experimental ARPES and theoretical calculations confirmed the predicted electronic structures.

Conclusions:

  • Monolayer boron, in its β₁₂ sheet configuration, is identified as a novel Dirac material.
  • The ability to tune Dirac cones via substrate interactions offers a pathway for electronic device engineering.
  • This research positions monolayer boron as a promising platform for developing high-speed, low-dissipation electronic devices.