Degradation of MgB2 thin films in water

Y. Cui, J. E. Jones, A. Beckley, R. Donovan, D. Lishego, E. Maertz, A. V. Pogrebnyakov, P. Orgiani, J. M. Redwing, X. X. Xi

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Abstract

We have studied the degradation of MgB2 thin films, grown by hybrid physical-chemical vapor deposition (HPCVD), by submerging MgB2 films into de-ionized water at different temperatures. The thickness, room temperature resistance, and superconducting transition were measured as a function of time in water and the temperature of the water. Results show that the films degrade faster at room temperature than at 0°C. The room temperature resistance increases with time. The thickness of the MgB2 films decreases rapidly initially, but then saturates. The resultant material is amorphous and insulating. Both Tc(onset) and Tc(0) of the MgB2 films decrease with tune in water, while the superconducting transition become broader. The effects of the exposure to other solvents and photoresist were also studied, and it was found that isopropanol does not cause MgB2 films to degrade.

Original languageEnglish (US)
Pages (from-to)224-227
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume15
Issue number2 PART I
DOIs
StatePublished - Jun 1 2005

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Cui, Y., Jones, J. E., Beckley, A., Donovan, R., Lishego, D., Maertz, E., Pogrebnyakov, A. V., Orgiani, P., Redwing, J. M., & Xi, X. X. (2005). Degradation of MgB2 thin films in water. IEEE Transactions on Applied Superconductivity, 15(2 PART I), 224-227. https://doi.org/10.1109/TASC.2005.849763