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151Eu-Mössbauer investigation in some new ternary Eu2M3Si5 systems (M=Ni, Pd, Cu, Rh)

  • Relaxation Phase Transitions Lattice Dynamics
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Abstract

The series Eu2M3Si5 (M=Ni, Cu, Pd, Rh) have been synthesised for the first time. The Ni, Cu, Pd systems form in U2Co3Si5 type structure.151Eu Mössbauer spectroscopy shows that Eu is in valence fluctuating (VF) state in Ni system, while in Cu and Pd systems it is in stable divalent state. These observations are further confirmed by magnetic susceptibility studies. The material Eu2Rh3Si5 shows two lines in the Mössbauer resonance, one of which shows VF behaviour.

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Authors and Affiliations

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

    Sujata Patil

  2. Tata Institute of Fundamental Research, 400 005, bombay, India

    R. Nagarajan, L. C. Gupta & R. Vijayaraghavan

  3. ER 209, Chimie Metallurgique des Terres F 92190, CNRS, Meudon, France

    C. Godart

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  1. Sujata Patil
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  2. R. Nagarajan
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  3. L. C. Gupta
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  4. C. Godart
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  5. R. Vijayaraghavan
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  6. B. D. Padalia
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Patil, S., Nagarajan, R., Gupta, L.C. et al. 151Eu-Mössbauer investigation in some new ternary Eu2M3Si5 systems (M=Ni, Pd, Cu, Rh). Hyperfine Interact 42, 1063–1066 (1988). https://doi.org/10.1007/BF02395574

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