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Metals and Superconductors: Molecular Analogs of Atomic Hydrogen
Author(s) -
Haddon Robert C.
Publication year - 2012
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201200555
Subject(s) - superconductivity , molecule , chemistry , hydrogen , metal , molecular solid , metallic hydrogen , chemical physics , chalcogenide , radical , inorganic chemistry , computational chemistry , organic chemistry , condensed matter physics , physics
One for the half: Recent work on atomic hydrogen and neutral radical heterocyclic molecules has moved the field of spin S =1/2 solids closer to the realization of synthetic intrinsic metals and superconductors. High‐pressure experiments on hydrogen and chalcogenide‐nitrogen molecules (see picture) show evidence of metallic character. The molecular radicals exhibit a positive temperature coefficient of resistance under pressure—the classic signature of a metal.
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