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Paramagnetic resonance of Mn2+ in KNO3 single crystal: Motional effects

  • K. N. Shrivastava
  • Putcha Venkateswarlu
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Abstract

The electron paramagnetic resonance of Mn2+ in KNO3 single crystal is investigated over a temperature cycle through transition temperatures. The hyperfine coupling constant, A, half width,Δ H, and the line intensity, I, are found to show sudden changes at the transition temperature, at whichα-KNO3 changes intoβ-KNO3. The lines are much sharper in the high temperatureβ-phase than inα-phase of the crystal. They are explained, qualitatively, in terms of structure change and rotation of NO 3 ions. The spectra in the two phases,α andβ, are analysed in terms of usual spin-Hamiltonian. A search of metastableγ-phase is also made and probable indications for the same are found.

Keywords

Electron Paramagnetic Resonance Line Width Dispersion Curve Aragonite Line Intensity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Indian Academy of Sciences 1966

Authors and Affiliations

  • K. N. Shrivastava
    • 1
  • Putcha Venkateswarlu
    • 1
  1. 1.Department of PhysicsIndian Institute of TechnologyKanpurIndia

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