Editing Semimetal (section)

== Classic semimetals ==
The classic semimetallic elements are [[arsenic]], [[antimony]], [[bismuth]], α-[[tin]] (gray tin) and [[graphite]], an [[allotrope]] of [[carbon]]. The first two (As, Sb) are also considered [[metalloids]] but the terms semimetal and metalloid are not synonymous. Semimetals, in contrast to metalloids, can also be [[chemical compound]]s, such as [[mercury telluride]] (HgTe),<ref>{{cite journal
|first=Yang
|last=Wang
|author2= N. Mansour
|author3= A. Salem
|author4= K.F. Brennan
|author5= P.P. Ruden
|name-list-style= amp
|title=Theoretical study of a potential low-noise semimetal-based avalanche photodetector
|date=1992
|journal=IEEE Journal of Quantum Electronics
|volume=28
|issue=2
|pages=507–513
|doi=10.1109/3.123280 |bibcode = 1992IJQE...28..507W }}</ref> and [[tin]], [[bismuth]], and [[graphite]] are typically not considered metalloids.<ref>{{cite journal
|first=P.R.
|last=Wallace
|title=The Band Theory of Graphite
|date=1947
|journal=Physical Review
|volume=71
|issue=9
|pages=622–634
|doi=10.1103/PhysRev.71.622|bibcode = 1947PhRv...71..622W |s2cid=53633968
}}</ref>
Transient semimetal states have been reported at extreme conditions.<ref>{{cite journal|doi=10.1038/nphys806|title=A transient semimetallic layer in detonating nitromethane|date=2007|last1=Reed|first1=Evan J.|last2= Manaa|first2=M. Riad|last3=Fried|first3=Laurence E.|last4=Glaesemann|first4=Kurt R.|last5=Joannopoulos|first5=J. D.|journal=Nature Physics|volume=4|issue=1|pages=72–76|bibcode = 2008NatPh...4...72R }}</ref> It has been recently shown that some [[conductive polymers]] can behave as semimetals.<ref>{{cite journal
|doi=10.1038/nmat3824|last1=Bubnova
|first1=Olga
|first2=Ullah Khan
|last2=Zia
|first3=Hui
|last3=Wang
|title=Semi-Metallic Polymers
|journal=Nature Materials
|date=2014
|volume=13|issue=2
|pages=190–4|bibcode = 2014NatMa..13..190B|pmid=24317188|s2cid=205409397
|url=https://liu.diva-portal.org/smash/get/diva2:698183/FULLTEXT01
}}</ref>