Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.96.064416
Title: Zeeman interaction and Jahn-Teller effect in the Gamma(8) multiplet
Authors: Iwahara, Naoya 
Vieru, Veacheslav
Ungur, Liviu 
Chibotaru, Liviu F
Keywords: Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Materials Science
Physics
PARAMAGNETIC-RESONANCE
REDUCTION FACTORS
HEAT-CAPACITY
GROUND-STATE
SPECTRA
CRYSTALS
SYSTEMS
MOMENT
PHASE
Issue Date: 11-Aug-2017
Publisher: AMER PHYSICAL SOC
Citation: Iwahara, Naoya, Vieru, Veacheslav, Ungur, Liviu, Chibotaru, Liviu F (2017-08-11). Zeeman interaction and Jahn-Teller effect in the Gamma(8) multiplet. PHYSICAL REVIEW B 96 (6). ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.96.064416
Abstract: We present a thorough analysis of the interplay of magnetic moment and the Jahn-Teller effect in the Γ8 cubic multiplet. We find that in the presence of the dynamical Jahn-Teller effect, the Zeeman interaction remains isotropic, whereas the g and G factors can change their signs. The static Jahn-Teller distortion also can change the sign of these g factors as well as the nature of the magnetic anisotropy. Combining the theory with state-of-the-art ab initio calculations, we analyzed the magnetic properties of Np4+ and Ir4+ impurity ions in a cubic environment. The calculated g factors of the Np4+ impurity agree well with experimental data. The ab initio calculation predicts a strong Jahn-Teller effect in Ir4+ ion in the cubic environment and the strong vibronic reduction of g and G factors.
Source Title: PHYSICAL REVIEW B
URI: https://scholarbank.nus.edu.sg/handle/10635/228688
ISSN: 24699950
24699969
DOI: 10.1103/PhysRevB.96.064416
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