Different regions of fluctuation conductivity in unirradiated and alpha-irradiated Bi2Sr2CaCu2O8+δ and (Bi,Pb)2Sr2CaCu2O8+δ superconductors

De, Uday Chand; Mandal, Koushik; Sanyal, Dirtha; Majumdar, Chanchal K.

doi:10.1016/s0921-4534(00)00337-3

Cited by 7 publications

(2 citation statements)

References 15 publications

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“…The XRD study confirms that the crystal geometry does not change on irradiation. However, the decrease in XRD peak intensities and the increase in peak broadness on increasing irradiation dose indicate the deterioration of crystal structure to some extent after irradiation [15]. Fig.…”

Section: Methodsmentioning

confidence: 94%

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Effect of <inline-formula> <tex-math notation="TeX">\(\alpha \) </tex-math></inline-formula>-Particle Irradiation on the Magnetic Properties of Ni Nanowires

Singh¹,

Das²,

Sen³

et al. 2014

IEEE Trans. Magn.

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We report the effect of α-particle irradiation on the magnetic properties of nickel (Ni) nanowires (NWs) arrays with diameter of each NW ∼100 nm prepared by electrodeposition using anodic alumina oxide (AAO) membranes. Different doses of α-particles irradiation, up to 2 × 10 16 α/cm 2 were used to observe the effect. Structural characterization indicates the reduction in crystallinity of Ni NWs after irradiation. Coercivity (H c ) was found to increase with α-particle dose due to the formation of pinning centers. The magnetic easy axis changed direction from in-plane (with AAO template) to the out-of-plane due to the decrease in magnetocrystalline anisotropy by α-particle irradiation. Furthermore, the effect of α-particle irradiation on Ni NWs was studied by magnetic Barkhausen noise measurements.

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Section: Methodsmentioning

confidence: 94%

“…The sample without any irradiation was called sample 1, and two other samples were irradiated with a beam of 40 MeV α-particles with two different doses of 2 × 10 15 (sample 2) and 2 × 10 16 α/cm 2 (sample 3) obtained from the Variable Energy Cyclotron in Kolkata [15]. The beam current was 100 nA.…”

Section: Methodsmentioning

confidence: 99%