Effect of field inhomogeneity on the magnetisation measurements in the peak effect region of CeRu<SUB>2</SUB> superconductor
- Ravikumar, G.
- Rao, T. V. Chandrasekhar
- Mishra, P. K.
- Sahni, V. C.
- Saha, Subir
- Banerjee, S. S.
- Patil, N. G.
- Grover, A. K.
- Ramakrishnan, S.
- Bhattacharya, S.
- Yamamoto, E.
- Haga, Y.
- Hedo, M.
- Inada, Y.
- Onuki, Y.
DOIAbstract
Detailed magnetisation measurements are presented for a cubic Laves phase superconducting single crystal CeRu2. These measurements have been performed in the peak effect regime using Quantum Design SQUID Magnetic Property Measurement System (MPMS). To understand the influence of magnetic field inhomogeneity of this set up, on the measured magnetisation, all the data is recorded for different scan lengths. We clearly demonstrate that some of the anomalous magnetisation results reported in literature are artefacts of field inhomogeneity. We also present a model based on Critical State Model to simulate the effect of field inhomogeneity on the measured magnetisation
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