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

Band Theory

Band Theory

When two or more atoms come together to form a molecule, their atomic orbitals combine and molecular orbitals of distinct energies result. In a solid, there are a large number of atoms, and therefore a large number of atomic orbitals that may be combined into molecular orbitals. These groups of molecular orbitals are so closely placed together to form continuous regions of energies, known as the bands.
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...

Bewley Lattice Diagram

Bewley Lattice Diagram

The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.

Lattice Centering and Coordination Number

Lattice Centering and Coordination Number

The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...

Energy Bands in Solids

Energy Bands in Solids

Isolated atoms have discrete energy levels that are well described by the Bohr model. And, it quantifies the energy of an electron in a hydrogen atom as En. Higher quantum numbers 'n' yield less negative, closer electron energy levels.
Band Formation:
When atoms are brought close together, as in a solid, these discrete energy levels begin to split due to the overlap of electron orbitals from adjacent atoms. This split occurs because of the Pauli exclusion principle, which states...

Metallic Solids

Metallic Solids

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....

Structures of Solids

Structures of Solids

Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...

You might also read

Related Articles

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

Sort by

Same author

Inverse Spin Hall Effect Dominated Spin-Charge Conversion in (101) and (110)-Oriented RuO_{2} Films.

Physical review letters·2024

Same author

Coherent Picture on the Pure Spin Transport between Ag/Bi and Ferromagnets.

Physical review letters·2022

Same author

Unveiling the Mechanism for the Split Hysteresis Loop in Epitaxial Co2Fe1-xMnxAl Full-Heusler Alloy Films.

Scientific reports·2016

Same author

Spectroscopic study of Gd nanostructures quantum confined in Fe corrals.

Scientific reports·2015

Same author

Physical origins of the new magnetoresistance in Pt/YIG.

Physical review letters·2014

Same author

Inverse spin Hall effect in a ferromagnetic metal.

Physical review letters·2013

Search research articles

Related Experiment Video

Updated: May 23, 2025

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

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

Published on: October 12, 2019

General Method to Construct Flat Bands in Two-Dimensional Lattices.

H T Li¹, T Z Ji¹, R G Yan¹

¹Nanjing University, National Laboratory of Solid State Microstructures, Department of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China.

Physical Review Letters

|March 7, 2025

Summary

This summary is machine-generated.

Researchers developed a new method using mathematical optimization to find flat band materials. This approach discovered around 1000 new two-dimensional lattices, significantly advancing the search for novel quantum materials.

More Related Videos

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

Related Experiment Videos

Last Updated: May 23, 2025

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

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

Published on: October 12, 2019

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

Area of Science:

Condensed Matter Physics
Materials Science
Quantum Computing

Background:

Flat bands are crucial for exploring strongly correlated electronic effects.
Discovering new materials with flat bands is essential for designing advanced quantum devices.
Current methods for identifying flat-band materials are limited, hindering progress.

Purpose of the Study:

To present a general and effective method for realizing flat bands in materials.
To significantly expand the library of known flat-band lattice structures.
To facilitate the design of experimentally feasible configurations for flat-band materials.

Main Methods:

Developed a novel approach combining mathematical optimization and symmetry analysis.
Applied the method to discover new two-dimensional (2D) lattice types.
Verified the findings using first-principles calculations.

Main Results:

Identified approximately 1000 distinct types of 2D lattices capable of hosting flat bands.
This represents a substantial increase compared to the ~10 previously known flat-band lattices.
The discovered lattices offer promising avenues for experimental realization.

Conclusions:

The presented method offers a powerful and general strategy for discovering flat-band materials.
The large number of newly identified lattices opens up new possibilities for quantum device design.
This work provides crucial insights for the targeted creation of experimentally viable flat-band systems.