Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
semimetal
This term describes a specific class of materials that occupy a middle ground in electrical conductivity. It is used primarily in condensed matter physics and materials science to distinguish substances that are more conductive than semiconductors but lack the high carrier density of true metals.
In a technical context, the word evokes the image of a narrow energy gap or a slight overlap between electronic bands. It is a neutral, scientific descriptor used in academic papers and laboratory reports to categorize elements like bismuth or antimony based on their quantum mechanical properties.
Meanings
Examples
The conductivity of a semimetal is lower than that of a true metal.
Is this material classified as a semiconductor or a semimetal?
Is this material classified as a semiconductor or a semimetal?
The electronic structure of a semimetal allows for unique transport properties.
The electronic structure of a semimetal allows for unique transport properties.
I wonder if this specific alloy behaves like a semimetal under high pressure.
Graphite is often described as a semimetal due to its unique band structure.
We need to determine if the sample is a semimetal before proceeding with the experiment.
A semimetal has a very small overlap between its valence and conduction bands.