Room-temperature reaction of a Ni/Bi2Sr2CaCu2O8 interface

Asoka Kumar, P. S. ; Mahumuni, Shailaja ; Kulkarni, Pramada ; Mulla, I. S. ; Chandrachood, M. ; Sinha, A. P. B. ; Nigavekar, A. S. ; Kulkarni, S. K. (1990) Room-temperature reaction of a Ni/Bi2Sr2CaCu2O8 interface Journal of Applied Physics, 67 (6). 3184_1-3184_4. ISSN 0021-8979

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A Ni/Bi2Sr2CaCu2O8 reactive interface has been investigated by x-ray and ultraviolet photoelectron spectroscopy. Nickel reacts with the substrate disrupting BiO bonds along with CuO bonds. This behavior has been explained on the basis of thermodynamics. A complex NiBiSrCaCuO phase formed at the interface, sets up the diffusion barrier for oxygen withdrawal from the substrate at a thickness of~10 Å of nickel.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Bismuth Oxides; Strontium Oxides; Calcium Oxides; Copper Oxides; Superconductors; Nickel; Interfaces; Chemical Reactions; Photoelectron Spectroscopy; X Radiation; Ultraviolet Radiation; Medium Temperature; Thermodynamics; Diffusion
ID Code:48967
Deposited On:18 Jul 2011 10:13
Last Modified:17 Jul 2012 00:29

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