مرکز منطقه ای اطلاع رساني علوم و فناوري - Evolution of Electrical and Electrodynamic Properties of <formula formulatype="inline"> <img src="/images/tex/18982.gif" alt="{\\rm YBa}_{2}{\\rm Cu}_{3}{\\rm O}_{7-{\\rm x}}"> </formula> Bicrystal Josephson Junctions With Oxygen Loading

DocumentCode :

1434207

Title :

Evolution of Electrical and Electrodynamic Properties of ${\\rm YBa}_{2}{\\rm Cu}_{3}{\\rm O}_{7-{\\rm x}}$ Bicrystal Josephson Junctions With Oxygen Loading

Author :

Gundareva, I.I. ; Volkov, O.Y. ; Lyatti, M.V. ; Divin, Y.Y. ; Gubankov, V.N. ; Pavlovskiy, V.V.

Author_Institution :

Kotel´´nikov Inst. of Radio Eng. & Electron., RAS, Moscow, Russia

Volume :

Issue :

fYear :

2011

fDate :

6/1/2011 12:00:00 AM

Firstpage :

147

Lastpage :

150

Abstract :

The I-V curves and dynamic resistances Rd (V) of [001]-tilt YBa₂Cu₃O_7-x bicrystal Josephson junctions have been experimentally studied at various levels of oxygen loading. Oxygen content was modified by annealing in ozone atmosphere, in vacuum or in air. Deviations of the IV -curves from those predicted by the RSJC model in the form of additional nonlinearities at the middle and high voltages were found to decrease after enhancement of oxygen content in junctions. Electrodynamic properties of Josephson junctions were analyzed using log-periodic YBa₂Cu₃O_7-x antennas, integrated with the junctions. Fine structures on the IV-curves, related to antenna resonances, were modified with oxygen content due to better antenna-junction coupling and lower electromagnetic losses in YBa₂Cu₃O_7-x film.

Keywords :

annealing; barium compounds; copper compounds; electrodynamics; high-temperature superconductors; log periodic antennas; superconducting junction devices; superconducting thin films; yttrium compounds; I-V curves; RSJC model; YBa₂Cu₃O_7-x; antenna resonance; antenna-junction coupling; bicrystal Josephson junctions; electrical property; electrodynamic property; electromagnetic losses; high-temperature superconductors; log-periodic antennas; oxygen loading; ozone atmosphere annealing; Annealing; Antennas; Josephson junctions; Junctions; Resistance; Resonant frequency; Temperature; High-temperature superconductors; Josephson devices; microwave circuits; oxidation;

fLanguage :

English

Journal_Title :

Applied Superconductivity, IEEE Transactions on

Publisher :

ieee

ISSN :

1051-8223

Type :

jour

DOI :

10.1109/TASC.2010.2101030

Filename :

5699940

Link To Document :

https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1434207