Normalized radial and vertical magnetic field components as a function of the distance to the center of the sample holder.
Optical path inside the microscope.
Overview of the different parts of the MO He flow cryostat. (1) Liquid He entry. (2) Thermometers and voltage wires output. (3) Current wires. (4) He gas output. (5) Thermal screening. (6) Sample holder. (7) External hull. (8) Magnetic coil ( diameter).
Algorithm for quantitative field maps obtention.
Schematic view of the experimental strain apparatus. (1) External screw for strain application. (2) Current wires. (3) Inox clamps. (4) He tank. (5) Sample holder.
Schematic view of the MO garnet placed on a superconducting sample.
CC typical patterning and preparation for a MO experiment under axial stress. (1) voltage taps, (2) current taps, (3) wide and long bridge, (4) strain gage, and (5) Pt-100 temperature sensor.
MO images (zero field cooled, , ) of the DyBCO CC patterned sample. The sample edge is at the bottom. The strain application direction is indicated by the black arrows. One bridge ( wide) among 20 is used for transport experiments. Left: 0.175% relative elongation. Right: 0.185% relative elongation.
Critical current at as a function of relative elongation for the bridge indicated on Fig. 8.
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