Related Experiment Video
Updated: Sep 9, 2025

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
Published on: August 28, 2018
Theoretical prediction of a novel 2D TiOBr monolayer with negative Poisson's ratio using first-principles
Shuzhen Li1, Huabin Gong1, Xiaobiao Liu2
1School of Science, Shandong Jianzhu University Jinan Shandong 250101 China yangbo19@sdjzu.edu.cn.
Abstract:
Two-dimensional (2D) materials with novel mechanical behaviors and electronic characteristics have attracted extensive attention in multiple cutting-edge fields in recent years. Based on first-principles calculations, we systematically investigate the mechanical properties and electronic characteristics of transition metal oxyhalide TiOBr in this work. Results demonstrate that the TiOBr monolayer exhibits metallic characteristics with Dirac points located above the Fermi level. The calculated Fermi velocity of 0.32 × 106 m s-1 indicates its superior electron mobility. Furthermore, the TiOBr monolayer displays a negative Poisson's ratio (NPR) effect, establishing it as a promising candidate for auxetic materials. These distinctive properties endow the TiOBr monolayer with significant research value and application prospects in future nanoelectronics and mechanical functional materials.
More Related Videos
13:56Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
Published on: October 12, 2019
08:00Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
Related Concept Videos
Poisson's Ratio
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
MO Theory and Covalent Bonding
First Law: Particles in Two-dimensional Equilibrium
Newton's first law tells us about...
Electrostatic Boundary Conditions in Dielectrics
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...
Poiseuille's Law and Reynolds Number