ISSN:
1432-0630
Keywords:
74.70
;
61.70
;
63
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract A phenomenological macro-resonance-cell description of bonding in high-T c oxide superconductors based on some common structural features is proposed. In this description, the oxidation states of the cations on the lattice frame are assumed to be oscillating. The oxygen atoms are described as being in a “breathing mode” and coupling is assumed to exist between the CuO2 layers and the boundary (capping) layers in these quasi two-dimensional systems. The variation ofT c for different materials is attributed in part to the relative effectiveness of the coupling between different kinds of boundary layer(s). Peierl's deformation or Jahn-Teller effect assisted by lattice softening and possibly magnetic ordering is discussed in relation to high-T c superconductivity in these oxides.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00616296
Permalink
