Abstract
The peak effect in ${\mathrm{YBa}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ single crystals is observed by transport-current measurements. Comparison with the shielding current from magnetization shows good agreement between the results, which exclude granularity as being necessarily involved in the origin of the peak effect. The behavior of the current-voltage characteristics in a wide voltage range (${10}^{\mathrm{\ensuremath{-}}9}$E${10}^{\mathrm{\ensuremath{-}}4}$ V/cm) is analyzed. Different types of scaling are established in magnetic fields below and above the position of the current peak. Possible mechanisms responsible for the peak effect are discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
