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- Title
Stable local structure in LSMCO system and its relationship with pseudogap.
- Authors
Guo, C. Q.; Yan, Y.; Li, L.; Han, J. X.; Wei, K.; Lin, F.; Zhang, H.
- Abstract
Pseudogap is a unique property of high- superconductors. However, it was also found that there is a similar pseudogap in giant magnetoresistive La-Sr-Mn-O materials, which are not superconductors. In our previous research, we suggested that the origin of the pseudogap is correlated with the stability of plane. We call it a steady 'fixed triangle' local structure. If our assumption is correct, it will be expected to find a similar stable local structure in the La-Sr-Mn-O system, which is similar to the plane in cuprates. We synthesized Co-doped (LSMCO) materials and investigated them. Based on the detailed analysis of the crystalline structure, it is found that there indeed exists a stable local triangles in plane. Comparing this similarity with the fixed triangles in the cuprate superconductors, it shows that the origin of the pseudogap may possibly be correlated with the stability of the local structure.
- Subjects
HIGH temperature superconductors; CRYSTAL structure; DOPING agents (Chemistry); CHEMICAL stability; COPPER compounds synthesis
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2015, Vol 29, Issue 25/26, p-1
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S021797921542028X