Abstract
We have measured the temperature dependence of the ab-plane resistivity on Bi2Sr2CaCu2Oy single crystals with high sensitivity. A clear resistivity drop was observed when a relatively low magnetic field was applied, which is attributed to the melting transition of the flux line lattice. Three crystals with different carrier doping level were investigated and the phase diagrams are determined from the resistivity measurements. It is also shown that the phase transition temperature depends strongly on the angle between the magnetic field and the crystallographic c-axis direction, reflecting the large anisotropy of Bi2Sr2CaCu2Oy.
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Ikuta, H., Watauchi, S., Shimoyama, J. et al. Resistivity measurements and the vortex phase diagram of Bi2Sr2CaCu2O y . J Low Temp Phys 105, 1189–1194 (1996). https://doi.org/10.1007/BF00753861
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DOI: https://doi.org/10.1007/BF00753861