Related Experiment Video
Updated: Jan 30, 2026
12:37
Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
Published on: September 4, 2015
13.0K
Computational discovery and characterization of new B2O phases
Jianyun Wang1, Quan Li, Chris J Pickard
1State Key Laboratory of Superhard Materials, Key Laboratory of Automobile Materials of MOE, Innovation Center for Computational Physics Method and Software, and Department of Materials Science, Jilin University, Changchun 130012, China. liquan777@jlu.edu.cn mym@jlu.edu.cn.
Physical Chemistry Chemical Physics : PCCP
|January 19, 2019
Summary
Computational studies reveal new boron suboxide (B2O) phases with unique structures and electronic properties. These novel B2O materials exhibit superconductivity at low temperatures, opening avenues for future research and applications.
Area of Science:
- Materials Science
- Computational Chemistry
- Solid State Physics
Background:
- Boron suboxide (B2O) compounds are known for their complex structures and potential applications.
- Understanding the phase behavior of B2O under varying pressures is crucial for materials design.
Purpose of the Study:
- To computationally discover and characterize new structural phases of B2O.
- To investigate the bonding networks, electronic states, and superconducting properties of these phases.
Main Methods:
- Utilized advanced crystal structure searches.
- Employed density functional theory (DFT) calculations.
- Analyzed chemical bonding, electronic states, charge carriers, and electron-phonon coupling.
Main Results:
- Identified a stable orthorhombic phase of B2O at ambient pressure with B12 icosahedral clusters.
- Discovered a pressure-induced structural transformation to a trigonal phase above 1.9 GPa.
- Both phases exhibit superconductivity at low temperatures (6.4 K and 5.9 K).
Conclusions:
- Established new B2O phases with distinct structural and electronic characteristics.
- Characterized the superconducting behavior of the identified B2O phases.
- Provided insights for fundamental understanding, synthesis, and potential applications of B2O.
Related Concept Videos
01:26Drug Discovery: Overview
11.5K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
11.5K
02:39Phase Diagrams
50.1K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
50.1K
02:31Phase Transitions
23.1K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.1K
01:10Computed Tomography
8.3K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.3K
01:28Inductance: Single-Phase And Three-Phase Line
626
Understanding the inductance of transmission lines is crucial for efficient design and operation in electrical power systems. This discussion delves into the inductance characteristics of single-phase two-wire and three-phase three-wire transmission lines with equal phase spacing.
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
626
01:25Capacitance: Single-Phase And Three-Phase Line
605
In electrical power systems, understanding the capacitance of transmission lines is fundamental for efficient operation.
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
605