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Photoemission spectromicroscopy study of a Bi2Sr2CaCu2O8+delta single crystal

Bertolo, M; Bianco, A; Cautero, G; Goldoni, A; Larciprete, R; La Rosa, S; Lizzit, S; Zakharov, Alexei LU ; Lindau, Ingolf LU and Vobornik, I, et al. (2003) 7th International Conference on X-Ray Microscopy In Journal de Physique IV - Proceedings 104. p.487-490
Abstract
Using photoemission spectromicroscopy at sub-micron lateral resolution we studied two superconductor systems of high fundamental and practical importance, such as Bi2Sr2CaCu2O8+delta and MgB2. Our findings demonstrate the importance of considering, for this class of systems, the possible presence of spatial inhomogeneities in interpreting the results of conventional photoemission experiments, which typically probe an area of the order of 1 mm(2). In particular, in the case of MgB2, we report a measured density of states directly comparable to the theoretical predictions, thus rejecting the claim for the existence of strong correlation effects proposed by previous spatially averaged measurements.
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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Journal de Physique IV - Proceedings
volume
104
pages
487 - 490
publisher
EDP Sciences
conference name
7th International Conference on X-Ray Microscopy
external identifiers
  • wos:000183273900115
  • scopus:0037725013
ISSN
1764-7177
1155-4339
DOI
language
English
LU publication?
yes
id
1c73bede-549e-4ec2-bd43-540e68d964cb (old id 309580)
date added to LUP
2007-08-23 09:04:17
date last changed
2018-05-29 10:24:50
@inproceedings{1c73bede-549e-4ec2-bd43-540e68d964cb,
  abstract     = {Using photoemission spectromicroscopy at sub-micron lateral resolution we studied two superconductor systems of high fundamental and practical importance, such as Bi2Sr2CaCu2O8+delta and MgB2. Our findings demonstrate the importance of considering, for this class of systems, the possible presence of spatial inhomogeneities in interpreting the results of conventional photoemission experiments, which typically probe an area of the order of 1 mm(2). In particular, in the case of MgB2, we report a measured density of states directly comparable to the theoretical predictions, thus rejecting the claim for the existence of strong correlation effects proposed by previous spatially averaged measurements.},
  author       = {Bertolo, M and Bianco, A and Cautero, G and Goldoni, A and Larciprete, R and La Rosa, S and Lizzit, S and Zakharov, Alexei and Lindau, Ingolf and Vobornik, I and Yoshizaki, R},
  booktitle    = {Journal de Physique IV - Proceedings},
  issn         = {1764-7177},
  language     = {eng},
  pages        = {487--490},
  publisher    = {EDP Sciences},
  title        = {Photoemission spectromicroscopy study of a Bi2Sr2CaCu2O8+delta single crystal},
  url          = {http://dx.doi.org/},
  volume       = {104},
  year         = {2003},
}