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• Open Access   Article

  f(R) Induced Gravity from the Occurrence of a Binary Action

  Omprakash Atale

  Research Paper | Journal-Paper (IJSRPAS)

  Vol.10 , Issue.1 , pp.1-4, Feb-2022

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  In this paper, we generalize the recently discovered relationship between induced gravity and a binary action to the extent of constructing the cosmological model for the late time cosmic acceleration from the corresponding f(R) induced gravity model. We have first constructed the action and then derive the field equations by conventional approach. The derived field equations are then applied to FLRW metric and modified Friedman’s equations are derived.

  Key-Words / Index Term
  f(R) gravity, binary action, FLRW metric

  References
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  Citation
  Omprakash Atale, "f(R) Induced Gravity from the Occurrence of a Binary Action," International Journal of Scientific Research in Physics and Applied Sciences, Vol.10, Issue.1, pp.1-4, 2022

• Open Access   Article

  Theoretical Zero Field Splitting Parameters of Fe3+ doped (NH4)2[AlF5.H2O] Single Crystal

  Ram Kripal, Lal Chandra Shukla

  Research Paper | Journal-Paper (IJSRPAS)

  Vol.10 , Issue.1 , pp.5-9, Feb-2022

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  Abstract
  Zero field splitting parameters (ZFSPs) D and E of Fe3+ doped (NH4)2[AlF5.H2O] (AAF) crystals are determined theoretically at room temperature (RT) using Crystal field parameters (CFPs) from superposition model. The obtained theoretical D and E are in reasonable agreement with the experimental values. The experimental conclusion that Fe3+ substitutes for Al3+ in AAF is supported by the present study. The parameters D and E are computed without and with local distortion. These D and E provide reasonable agreement with the experimental ones when we consider the local distortion.

  Key-Words / Index Term
  Inorganic compounds; Single crystal; Crystal fields; Optical properties; Electron paramagnetic resonance

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  Citation
  Ram Kripal, Lal Chandra Shukla, "Theoretical Zero Field Splitting Parameters of Fe3+ doped (NH4)2[AlF5.H2O] Single Crystal," International Journal of Scientific Research in Physics and Applied Sciences, Vol.10, Issue.1, pp.5-9, 2022