Correlated Oxides II
Correlated Oxides II
Correlated Oxides II
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What determines the T c ?<br />
Superconductivity = electron pairs (Cooper pairs) <br />
An excitation to<br />
generate pairing<br />
“glue” <br />
Phononω = ω ph ~ 300 K<br />
Antiferromagnetic<br />
interactionω = J ~ 1500 K<br />
dumping factor ~ 0.1 <br />
T c ~ 300×0.1 = 30 K <br />
“BCS wall” <br />
T c ~ 1,500×0.1 = 150 K <br />
More glues available for SC?