Linked Life Data

16486488

Source:http://linkedlifedata.com/resource/pubmed/id/16486488

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2006-2-20
pubmed:abstractText
Substituting Eu by Ca in ferromagnetic EuB6 leads to a percolation limited magnetic ordering. We present and discuss magneto-optical data of the Eu(1-x)Ca(x)B6 series, based on measurements of the reflectivity R(omega) from the far infrared up to the ultraviolet, as a function of temperature and magnetic field. Via the Kramers-Kronig transformation of R(omega) we extract the complete absorption spectra of samples with different values of x. The change of the spectral weight in the Drude component by increasing the magnetic field agrees with a scenario based on the double-exchange model, and suggests a crossover from a ferromagnetic metal to a ferromagnetic Anderson insulator upon increasing Ca content at low temperatures.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jan
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
96
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
016403
pubmed:year
2006
pubmed:articleTitle
Magneto-optical evidence of double exchange in a percolating lattice.
pubmed:affiliation
Laboratorium für Festkörperphysik, ETH Zürich, CH-8093 Zürich, Switzerland.
pubmed:publicationType
Journal Article