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Microwave magnetoabsorption in c-axis-oriented YBa2Cu3O7 films with columnar defects

✍ Scribed by S.E. Lofland; S.D. Tyagi; S.M. Bhagat; M. Rajeswari; T. Venkatesan; D. Kanjilal; G.K. Mehta

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 556 KB
Volume: 267
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(96)00377-2

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✦ Synopsis

We report on the temperature, angular, and frequency dependence of the microwave magnetoabsorption of YBa2Cu307 c-axis oriented thin films. Some of the films were measured as-grown (pristine) while others were irradiated with 250 MeV Ag+ 17 ions whose fluences ranged from 0.5 to 10 × 10 ~5 m -2. By an extension of the viscously-damped-vortices model of Gittelman and Rosenblum in conjunction with the anisotropic scaling of Blatter, Geshkenbein and Larkin, the various dependencies can be described rather well. A phenomenological description of the magnetoabsorption for the damaged films is given.

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