Vortex phase diagram studies in the weakly pinned single crystals of YNi2B2C and LuNi2B2C

Pramana

D Pal¹  D Jaiswal-Nagar1⁴  S Ramakrishnan⁴  P C Canfield²  A K Grover1⁴  M R Eskildsen¹  H Takeya³ 

[1] Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA$$;Ames Laboratory, Iowa State University, Ames, Iowa, 50011, USA$$;National Institute for Materials Science, 3-13, Sakura, Tsukuba, Ibakari, 305003, Japan$$;Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India$$

关键词: Flux jumps;    peak effect;    second magnetisation peak;    YNi2B2C;    LuNi2B2C;    vortex phase diagram.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We present a study of magnetization measurements performed on the single crystals of YNi2B2C and LuNi2B2C. For both the compounds, we find flux jumps in magnetisation values in the respective field regions, where the structural transitions in the flux line lattice symmetry have been reported in these systems via the small angle neutron scattering experiments. The magnetisation hysteresis loops and the AC susceptibility measurements show pronounced peak effect as well as second magnetisation peak anomaly for both YNi2B2C and LuNi2B2C. Based on these results, a vortex phase diagram has been constructed for YNi2B2C for $H Arrowvert c$ depicting different glassy phases of the vortex matter.

【 授权许可】

Unknown