Application of a small oscillating magnetic field to reveal the peak effect in the resistivity of Nb3Sn

Abstract

By the application of a small oscillating magnetic field parallel to the main magnetic field and perpendicular to the transport current, we were able to unveil the peak effect in the resistivity data of Nb${}_3$Sn near the upper critical field $H_{c2}$. We investigated the dependence of this effect on the frequency and the amplitude of the oscillating magnetic field and show that the used technique can be more sensitive to detect the peak effect in a certain range of temperatures and magnetic fields than conventional magnetization measurements.

17 pages, 10 figures

References in corpus (7)

• Inverse melting of the vortex lattice
• Why an ac magnetic field shifts the irreversibility line in type-II superconductors
• Anisotropy of superconducting single crystal SmFeAsO_(0.8)F_(0.2) studied by torque magnetometry
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Cited by in corpus (2)

• Ac-magnetic susceptibility in the peak-effect region of Nb${}_3$Sn
• Estimates for the thermodynamic signatures of vortex-lattice melting in conventional superconductors