Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2007-5-15
pubmed:abstractText
From first-principles calculations, a high-pressure metallic phase of SnH(4) with a novel layered structure intercalated by "H(2)" units is revealed. This structure is stable at pressure between 70 and 160 GPa. A remarkable feature of this structure is the presence of soft modes in the phonon band structure induced by Fermi surface nesting and Kohn anomalies that lead to very strong electron-phonon coupling. The application of the Allen-Dynes modified McMillan equation with the calculated electron-phonon coupling parameter lambda shows that a superconducting critical temperature close to 80 K can be achieved at 120 GPa.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Mar
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
117004
pubmed:year
2007
pubmed:articleTitle
Novel superconductivity in metallic SnH(4) under high pressure.
pubmed:affiliation
Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Canada, S7N 5E2. John.Tse@usask.ca
pubmed:publicationType
Journal Article