Superconducting fluctuations and the Nernst effect: A diagrammatic approach

We calculate the contribution of superconducting fluctuations above the critical temperature $T_c$ to the transverse thermoelectric response $\alpha_{xy}$, the quantity central to the analysis of the Nernst effect. The calculation is carried out within the microscopic picture of BCS, and to linear order in magnetic field. We find that as $T \to T_c$, the dominant contribution to $\alpha_{xy}$ arises from the Aslamazov-Larkin diagrams, and is equal to the result previously obtained from a stochastic time-dependent Ginzburg-Landau equation [Ussishkin, Sondhi, and Huse, arXiv:cond-mat/0204484]. We present an argument which establishes this correspondence for the heat current. Other microscopic contributions, which generalize the Maki-Thompson and density of states terms for the conductivity, are less divergent as $T \to T_c$.Comment: 11 pages, 5 figure

Substituted pyridines - 1,2,5-Trimethyl-4-triphenylsilyl-4-piperidol and 2,5-dimethyl-4-triphenylsilylpyridine

1,2,5-Trimethyl-4-triphenylsilyl-4-piperidol was obtained and converted to 2,5-dimethyl-4-triphenylsilylpyridine. Several transformations of the isomeric piperidols isolated and of the substituted pyridines were examined. © 1973 Consultants Bureau

Synthesis of nitrogen-containing condensed heterocyclic compounds by catalytic dehydrocyclization of substituted pyridine bases (review)

Reactions involving the catalytic dehydrocyclization of synthetically accessible substituted pyridine bases, as a result of which condensed nitrogen-containing heterocyclic compounds containing three, four, and five rings are formed, are examined. © 1989 Plenum Publishing Corporation

Substituted pyridines - 1,2,5-Trimethyl-4-triphenylsilyl-4-piperidol and 2,5-dimethyl-4-triphenylsilylpyridine

1,2,5-Trimethyl-4-triphenylsilyl-4-piperidol was obtained and converted to 2,5-dimethyl-4-triphenylsilylpyridine. Several transformations of the isomeric piperidols isolated and of the substituted pyridines were examined. © 1973 Consultants Bureau

Synthesis of nitrogen-containing condensed heterocyclic compounds by catalytic dehydrocyclization of substituted pyridine bases (review)

Reactions involving the catalytic dehydrocyclization of synthetically accessible substituted pyridine bases, as a result of which condensed nitrogen-containing heterocyclic compounds containing three, four, and five rings are formed, are examined. © 1989 Plenum Publishing Corporation