Comparison of thermomagnetic history effects in weakly pinned single crystals of 𝑅3Rh4Sn13(R=Yb, Ca)

Pramana

S Ramakrishnan²  S Sarkar1²  A K Grover²  D McK Paul¹  G Balakrishnan¹  C V Tomy³ 

[1] Department of Physics, University of Warwick, Coventry CV4 7AL, UK$$;Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India$$;Department of Physics, Indian Institute of Technology, Powai, Mumbai 400 076, India$$

关键词: Weakly pinned R3Rh4Sn13;    thermomagnetic history effects;    peak effect;    amorphization of flux line lattice;    order–disorder transition.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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 $H||c$.

【 授权许可】

Unknown