Biswal, R. ; John, J. ; Raychaudhuri, P. ; Behera, D. ; Mohanty, T. ; Avasthi, D. K. ; Kanjilal, D. ; Mishra, N. C. (2011) Mesoscopic inhomogeneity creation in YBa2Cu3O7-y thin film by swift heavy ion irradiation at low temperature Radiation Effects and Defects in Solids, 166 (8-9). pp. 628-634. ISSN 1042-0150
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Official URL: http://www.tandfonline.com/doi/abs/10.1080/1042015...
Related URL: http://dx.doi.org/10.1080/10420150.2011.578636
Abstract
In the present study, we report the modification of pulsed laser deposited c-axis oriented thin films of YBa2Cu3O7-y (YBCO) in a cylindrical region around the path of swift heavy ions (SHIs). Our in situ temperature-dependent resistivity measurement and in situ low-temperature X-ray diffraction (XRD) study on YBCO irradiated at liquid nitrogen temperature with 200 MeV Ag ions shows that the SHI-induced secondary electrons selectively create point defects at CuO basal chains of YBCO. Beyond a critical fluence (∼1012 ions/cm2), the radially strained region around the amorphous latent tracks estimated from full width at half-maximum of (00l) XRD peaks tends to overlap, and a two-step superconducting transition evolves instead of a single transition in the in situ resistivity measurement.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Taylor & Francis Group. |
| Keywords: | Swift Heavy Ion Irradiation; Cuprate Superconductor; Phase Separation |
| ID Code: | 105255 |
| Deposited On: | 25 Dec 2017 12:22 |
| Last Modified: | 25 Dec 2017 12:22 |
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