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Electron paramagnetic resonance of ⁶¹Ni⁺ in CuGaS₂

Authors:	HJ Von Bardeleben C Schwab A Goltzene

Institution:	Laboratoire de Spectroscopie et d''Optique du Corps Solide, Groupe de Recherches no. 15 au C.N.R.S., Université Louis Pasteur, 67000 Strasbourg, France

Abstract:	EPR of ⁶¹Ni⁺ doped CuGaS₂ at 4.2 K leads to the following experimental data: $g = 1.918 ± 0.006 A  < 12 × 10^{-4} cm^{-1}, g_{⊥} = 2.328±0.006 A_{⊥} = (65±2) × 10^{-4} cm^{-1}$ . High axial field splitting of ²T₂ state stabilizes the center against Jahn-Teller interaction. Covalency reduction factor k is 0.76.

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