Linked Life Data

21386237

Source:http://linkedlifedata.com/resource/pubmed/id/21386237

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-3-9
pubmed:abstractText
Room temperature ferromagnetic Cu-doped ZnO nanowires have been synthesized using the chemical vapor deposition method. By combining structural characterizations and comparative annealing experiments, it has been found that both extrinsic (CuO nanoparticles) and intrinsic (Zn(1-x)Cu(x)O nanowires) sources are responsible for the observed ferromagnetic ordering of the as-grown samples. As regards the former, annealing in Zn vapor led to a dramatic decrease of the ferromagnetism. For the latter, a reversible switching of the ferromagnetism was observed with sequential annealings in Zn vapor and oxygen ambience respectively, which agreed well with previous reports for Cu-doped ZnO films. In addition, we have for the first time observed low temperature photoluminescence changed with magnetic properties upon annealing in different conditions, which revealed the crucial role played by interstitial zinc in directly mediating high T(c) ferromagnetism and indirectly modulating the Cu-related structured green emission via different charge transfer transitions.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jan
pubmed:issn
1361-648X
pubmed:author
pubmed:issnType
Electronic
pubmed:day
13
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
016002
pubmed:year
2010
pubmed:articleTitle
Effects of annealing on the ferromagnetism and photoluminescence of Cu-doped ZnO nanowires.
pubmed:affiliation
State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing, People's Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't