Effect of field inhomogeneity on the magnetisation measurements in the peak effect region of CeRu2 superconductor

G. Ravikumar, T. V. Chandrasekhar Rao, P. K. Mishra, V. C. Sahni, Subir Saha, S. S. Banerjee, N. G. Patil, A. K. Grover, S. Ramakrishnan, S. Bhattacharya, E. Yamamoto, Y. Haga, M. Hedo, Y. Inada, Y. Onuki

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24 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)9-17
Number of pages9
JournalPhysica C: Superconductivity and its applications
Volume276
Issue number1-2
DOIs
Publication statusPublished - Mar 1 1997
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Ravikumar, G., Chandrasekhar Rao, T. V., Mishra, P. K., Sahni, V. C., Saha, S., Banerjee, S. S., Patil, N. G., Grover, A. K., Ramakrishnan, S., Bhattacharya, S., Yamamoto, E., Haga, Y., Hedo, M., Inada, Y., & Onuki, Y. (1997). Effect of field inhomogeneity on the magnetisation measurements in the peak effect region of CeRu2 superconductor. Physica C: Superconductivity and its applications, 276(1-2), 9-17. https://doi.org/10.1016/S0921-4534(97)00039-7