A miniaturized interdigital microstrip bandpass filter

Huang, Kao-Cheng; Hyland, D.; Jenkins, A.P.; Edwards, D.J.; Dew‐Hughes, D.

doi:10.1109/77.783877

Cited by 5 publications

(1 citation statement)

References 7 publications

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“…The applications of high Tc superconductors (in thin film or bulk) are in microelectronics, in power systems, in high current systems, in storage systems of superconducting magnetic energy, and in others [1][2][3][4][5][6]. Among general processes for the preparation of high Tc superconducting thin film are sputtering [7], pulsed laser ablation [8], chemical vapor deposition, organic metal [9], the molecular beam epitaxy [10], sol-gel [11], and others. In general, processes for preparing superconducting thin films by using a vacuum system maintenance are expensive and complex in operation.…”

Section: Introductionmentioning

confidence: 99%

Phase Transition in Superconducting Thin Films of Tl System Employing a One-Zone Furnace and Deposited by Spray Pyrolysis

Rosas-Mendoza¹,

Pérez-Arrieta²,

Aguilar-Frutis³

et al. 2013

MSA

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A study of the phase transitions in superconducting thin films of the Thallium-Barium-Calcium-Copper (TBCCO) system is carried out. In particular, it was got the Tl-1223 phase. For this purpose, and using the ultrasonic spray pyrolysis technique, Barium-Calcium-Copper precursor films were first obtained. Upon deposition of the precursor films, and as a second step, they were thallium (Tl) diffused in the one-zone furnace at 860˚C. This methodology resulted in superconducting films that showed a phase transition as follows: Tl-2223 → Tl-2223 + Tl-2212 → Tl-2212 → Tl-1223, achieved between 2 and 7 hours of thallium diffusion. The evidence of the phase transitions was corroborated by the experimental results of X-ray diffraction, energy dispersive spectroscopy and resistance-temperature measurements.

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