![](/images/graphics-bg.png)
Lattice Instability in High Temperature Superconducting Cuprates and FeAs Systems : Polarons Probed by EXAFS
Joint Authors
Source
Advances in Condensed Matter Physics
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-01-19
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Carrier-induced lattice distortion (signature of polaron) in oxypnictide superconductors is found by an instantaneous local probe, extended X-ray absorption fine structure (EXAFS).
Polaron formation is detected as two distinct nearest neighbor distances (Fe-As), implying an incoherent local mode that develops coherence at the critical temperature.
Comparing the results with the unusual lattice response in cuprate superconductors, intimate correlation between evolution of local lattice mode and superconductivity is revealed.
The results suggest that strong electron-lattice interaction is present as a common ingredient in the microscopic mechanism of superconducting transition.
The effect of magnetic impurity atoms in cuprates further indicates that magnetic scattering becomes diluted as long as polaron formation is conserved.
We argue that polaron coherence dominates electrical conduction and magnetic interaction in oxypnictide and cuprate superconductors.
American Psychological Association (APA)
Oyanagi, H.& Zhang, C. J.. 2010. Lattice Instability in High Temperature Superconducting Cuprates and FeAs Systems : Polarons Probed by EXAFS. Advances in Condensed Matter Physics،Vol. 2010, no. 2010, pp.1-10.
https://search.emarefa.net/detail/BIM-475300
Modern Language Association (MLA)
Oyanagi, H.& Zhang, C. J.. Lattice Instability in High Temperature Superconducting Cuprates and FeAs Systems : Polarons Probed by EXAFS. Advances in Condensed Matter Physics No. 2010 (2010), pp.1-10.
https://search.emarefa.net/detail/BIM-475300
American Medical Association (AMA)
Oyanagi, H.& Zhang, C. J.. Lattice Instability in High Temperature Superconducting Cuprates and FeAs Systems : Polarons Probed by EXAFS. Advances in Condensed Matter Physics. 2010. Vol. 2010, no. 2010, pp.1-10.
https://search.emarefa.net/detail/BIM-475300
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-475300