Comparison of thermomagnetic history effects in weakly pinned single crystals of R3Rh4Sn13 (R=Yb, Ca)
S Sarkar S Ramakrishnan AK Grover CV Tomy G Balakrishnan D McK Paul
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A comparative study of the thermomagnetic memory effects of Jc in two weakly pinned low Tc superconductors, Ca3Rh4Sn13 (CaRhSn) and Yb3Rh4Sn13 (YbRhSn), is presented. In both the systems, the peak effect (PE) phenomenon appears as an order-disorder transformation through stepwise amorphization of the flux line lattice (FLL). However, in CaRhSn. we can witness another disorder-driven transition (Bragg glass (BG) to a vortex glass (VG) in a distinct manner as in a single crystal of high Tc YBa2Cu3O7-δ for H‖c.
S Sarkar1 S Ramakrishnan1 AK Grover1 CV Tomy2 G Balakrishnan3 D McK Paul3
Volume 97, 2023
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