Zeeman effect and stark splitting of the electronic states of the rare-earth ion in the paramagnetic terbium garnets Tb3Ga5O12 and Tb3Al5O12
U. V. ValievNational University of Uzbekistan, Tashkent, 700174, UzbekistanJohn B. GruberUniversity of Texas at San Antonio, San Antonio, Texas, 78249-0697, USADhiraj K. SardarUniversity of Texas at San Antonio, San Antonio, Texas, 78249-0697, USAB. ZandiARL/Adelphi Laboratory Center, Adelphi, Maryland, 20783-1197, USAI. S. KachurVerkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, pr. Lenina 47, Kharkov, 61103, UkraineA. K. MukhammadievNational University of Uzbekistan, Tashkent, 700174, UzbekistanV. G. PiryatinskayaVerkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, pr. Lenina 47, Kharkov, 61103, UkraineVladimir SokolovNational University of Uzbekistan, Tashkent, 700174, UzbekistanI. S. ÉdelmanKirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia
ABI
Annotatsiya
The Zeeman effect in the 7 F 6 → 5 D 4 absorption band of the Tb3+ ion in the paramagnetic garnets Tb3Ga5O12 and Tb3Al5O12 was studied. The field dependences of the Zeeman splitting of some absorption lines are found to exhibit unusual behavior: as the magnetic field increases, the band splitting decreases rather than increases. Symmetry analysis relates these lines to 4f → 4f electron transitions of the doublet-quasi-doublet or quasi-doublet-doublet type, for which the field dependences of the splitting differ radically from the well-known field dependences of the Zeeman splitting for quasi-doublet-quasi-doublet or quasi-doublet-singlet transitions in a longitudinal magnetic field.
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