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Super-Atom Representation of High-TC Superconductivity

Itai Panas (Institutionen för kemi- och bioteknik)
Condensed Matter Data base (2010)
[Artikel, övrig vetenskaplig]

A resonating valence bond RVB approach is taken to demonstrate formation of real-space Cooper pairs and High-TC superconductivity HTS. Non-adiabatic coupling between holes aggregates (super-atoms) and undoped anti-ferromagnet cause virtual excitations in either system due to inter-system coupling. HTS is said to reflect cooperative co-existence of two Bose-Einstein condensates in terms of one real-space Cooper pair condensate, and a second magnon condensate, which form at the same critical temperature. TC is formulated in terms of the super-exchange interaction. Connection is made to an equivalent real-space BCS formulation of HTS. Novel perspectives on the HTS in the electron-doped Sr1-xLaxCuO2 and Nd2-xCexCuO4 emerge.



Denna post skapades 2010-09-29.
CPL Pubid: 127050

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik (2005-2014)

Ämnesområden

Supraledning
Kvantkemi

Chalmers infrastruktur