Effects of 200-MeV Ag-ion irradiation on magnetization in a <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Bi</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Sr</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">CaCu</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>8</mn><mo>+</mo><mi mathvariant="italic">y</mi></mrow></msub></mrow></math> single crystal

A. K. Pradhan; S. B. Roy; P. Chaddah; D. Kanjilal; C. Chen; B. M. Wanklyn

doi:10.1103/PhysRevB.53.2269

Effects of 200-MeV Ag-ion irradiation on magnetization in a ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{8 + y}$ single crystal

A. K. Pradhan, S. B. Roy, P. Chaddah, D. Kanjilal, C. Chen, and B. M. Wanklyn

Phys. Rev. B 53, 2269 – Published 1 February 1996

Abstract

We report a dramatic change in the magnetization double peak anomaly and irreversibility line of a ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{8 + y}$ [BSCCO(2212)] single crystal after irradiation with 200-MeV Ag ions. We found that the partial destruction and ineffectiveness of dislocation networks in the ${CuO}_{2}$ planes of the BSCCO crystal after irradiation are responsible for the disappearance of the double peak anomaly. Ag irradiation induces damage in the form of columnar defects which cause an enhancement of flux pinning and a shift in the irreversibility line towards higher temperatures. © 1996 The American Physical Society.