Absorption Spectrum of Ni(II) Ions Doped in Lithium Sodium Potassium Sulphate Single Crystal

• Authors: R. Rama Kumar , B. Venkata Reddy
• Languages of publication: EN

Abstracts

EN

The optical absorption spectra of lithium sodium potassium sulphate doped Ni^{2+} ions at 300 and 77 K was recorded. The observed bands are as­signed as transitions from the ground state ^{3}A_{2g}(F) to various excited triplet and singlet states of the Ni^{2+} ion in octahedral symmetry. The splittings observed for the bands ^{3}T_{1g}(F) and ^{3}T_{2g}(F) at liquid nitrogen temperature have been explained as due to spin-orbit interaction. The oscillator strengths of the transitions were computed from the area under the curves. From a de­tailed analysis of the bands of the spectrum, the crystal field parameters B, C, Dq and ξ are evaluated.

Keywords

EN

78.40.-q; 78.50.-w

Discipline

• 78.40.-q: Absorption and reflection spectra: visible and ultraviolet(for infrared spectra, see 78.30.-j; for optical spectra of superconductors, see 74.25.nd; for time resolved reflection spectroscopy, see 78.47.jg; for multiphoton absorption, see 79.20.Ws in impact phenomena)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 87
• Issue: 6
• Pages: 1023-1029

Dates

published

1995-06

received

1995-01-30

Contributors

author

R. Rama Kumar

• Department of Physics, S.V. University, Tirupati - 517 502, India

author

B. Venkata Reddy

• Department of Physics, S.V. University, Tirupati - 517 502, India

Identifiers

DOI

10.12693/APhysPolA.87.1023