Linked Life Data

19509453

Source:http://linkedlifedata.com/resource/pubmed/id/19509453

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
26
pubmed:dateCreated
2009-6-17
pubmed:abstractText
We study scanning gate microscopy (SGM) in open quantum rings obtained from buried semiconductor InGaAs/InAlAs heterostructures. By performing a theoretical analysis based on the Keldysh-Green function approach we interpret the radial fringes observed in experiments as the effect of randomly distributed charged defects. We associate SGM conductance images with the local density of states (LDOS) of the system. We show that such an association cannot be made with the current density distribution. By varying an external magnetic field we are able to reproduce recursive quasi-classical orbits in LDOS and conductance images, which bear the same periodicity as the Aharonov-Bohm effect.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jul
pubmed:issn
1361-6528
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
264021
pubmed:year
2009
pubmed:articleTitle
Scanning gate microscopy of quantum rings: effects of an external magnetic field and of charged defects.
pubmed:affiliation
IMEP-LAHC, Grenoble INP Minatec, BP 257, F-38016 Grenoble, France. pala@minatec.inpg.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't