Disparity of superconducting and pseudogap scales in low-Tc Bi-2201 cuprates

Details Disparity of superconducting and pseudogap scales in low-Tc Bi-2201 cuprates Disparity of superconducting and pseudogap scales in low-Tc Bi-2201 cuprates

2012-02-28

arxiv.org/abs/1202.6370v1

Physics

Condensed Matter

Superconductivity

5 pages

Scientific paper

We experimentally study transport and intrinsic tunneling characteristics of a single-layer cuprate Bi(2+x)Sr(2-y)CuO(6+delta) with a low superconducting critical temperature Tc < 4 K. It is observed that the superconducting energy, critical field and fluctuation temperature range are scaling down with Tc, while the corresponding pseudogap characteristics have the same order of magnitude as for high-Tc cuprates with 20 to 30 times higher Tc. The observed disparity of the superconducting and pseudogap scales clearly reveals their different origins.

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