Linked Life Data

16610889

Source:http://linkedlifedata.com/resource/pubmed/id/16610889

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
2006-4-13
pubmed:abstractText
The epitaxial monolayer of NiO on Pd(100) has been theoretically simulated using a hybrid-exchange GGA-DFT Hamiltonian and a slab model, periodic in two dimensions. This "perfect" system is an essential reference for the simulation of nonstoichiometric two-dimensional phases which are formed during the deposition of nickel on palladium in the presence of oxygen. The adequacy of the computational procedure is discussed, especially as concerns the use of a thermal smearing technique which has been adopted to improve the convergence properties of the SCF procedure and to prevent the onset of nonphysical spin-polarized solutions. The equilibrium configuration corresponds to antiferromagnetic order in the overlayer, with oxygens on top of the surface Pd atoms; the ad-film is slightly corrugated with Ni closer to the surface by 0.1 A with respect to O. The interaction energy is quite small, 0.20 eV/NiO unit (about 5 kcal mol(-1)); correspondingly, the electronic and magnetic properties of the Pd slab and the isolated NiO monolayer are only marginally affected by the interaction.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Apr
pubmed:issn
1520-6106
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
110
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7909-17
pubmed:year
2006
pubmed:articleTitle
An ab initio periodic study of NiO supported at the Pd(100) surface. Part 1: The perfect epitaxial monolayer.
pubmed:affiliation
Dipartimento di Chimica IFM and Centre of Excellence NIS (Nanostructured Interfaces and Surfaces), Università di Torino, via Giuria 5, 10125 Torino, Italy. anna.ferrari@unito.it
pubmed:publicationType
Journal Article