60 ns time scale short pulse interlayer tunneling spectroscopy for Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+δ]

Kenkichi Anagawa; Yoshiharu Yamada; Takasada Shibauchi; Minoru Suzuki; Takao Watanabe
September 2003
Applied Physics Letters;9/22/2003, Vol. 83 Issue 12, p2381
Academic Journal
We utilize the short pulse interlayer tunneling spectroscopy on a 60 ns time scale for the Bi[sub 2]Sr[sub 2]CaCu[sub 2]O[sub 8+δ] system. The results indicate that the influence of self-heating is negligible up to an injection current density of ∼60 kA/cm[sup 2] and an injection power areal density of ∼90 kW/cm[sup 2]. By means of this technique, we are able to observe the superconducting gap, the pseudogap, and the dip-and-hump structure precisely with little influence from the self-heating. © 2003 American Institute of Physics.


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