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Mössbauer study of Fe-substituted orthorhombic and tetragonal YBa2(Cu1-xFex)3O7-σ system

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Abstract

Mössbauer study of orthorhombic and tetragonal YBa2(Cu1-xFex)3O7-σ;x=0.02, 0.04, 0.08 has been done to investigate the two inequivalent Cu-sites. Fe substituting Cu having pyramidal oxygen co-ordination is in Fe3+ state while Fe substituting Cu having square planar co-ordination is in Fe3+ and Fe4+ states in dynamic equilibrium.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Technology, 400 076, Bombay, India

    S N Shringi, O M Prakash, R V Vadnere, S Prasad & N Sharma

  2. Materials Science Centre, Indian Institute of Technology, 400 076, Bombay, India

    O M Prakash

Authors
  1. S N Shringi
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  2. O M Prakash
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  3. R V Vadnere
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  4. S Prasad
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  5. N Sharma
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Shringi, S.N., Prakash, O.M., Vadnere, R.V. et al. Mössbauer study of Fe-substituted orthorhombic and tetragonal YBa2(Cu1-xFex)3O7-σ system. Pramana - J. Phys. 32, L699–L704 (1989). https://doi.org/10.1007/BF02847391

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