• A study of erbium, thulium and other rare earth ethyl sulphates

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      https://www.ias.ac.in/article/fulltext/pram/004/05/0199-0212

    • Keywords

       

      Rare earth ethyl sulphates; erbium ethyl sulphate; thulium ethyl sulphate; angular overlap model; lanthanide ethyl sulphates

    • Abstract

       

      The available sets of crystal field parameters for erbium and thulium ethyl sulphates are used to calculate the Stark levels,g-values, Schottky specific heat, magnetic anisotropy, hyperfine interaction parameters and low temperature specific heat of these compounds. A comparison of these calculations with experimental data shows that one of these sets can be taken to be optimum within the accuracy of various measurements. These parameters along with the already optimised ones for other ethyl sulphates are discussed in the frameworks of electrostatic, angular overlap and superposition models for the crystalline fields. The antibonding energy parameter and ionicity are found to be different for light and heavy compounds and almost constant in either half of the series.

    • Author Affiliations

       

      Vishwamittar1 S P Puri1

      1. Department of Physics, Punjab Agricultural University, Ludhiana - 141004
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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