Magnetic field effects in optical and far IR spectra of LiTmF4 crystals

R. Yu. Abdulsabirov; A. A. Kazantsev; S. L. Korableva; Boris Z. Malkin; Sergey I. Nikitin; A. L. Stolov; M. S. Tagirov; D. A. Tayurskii; J. van Tol

doi:10.1117/12.475349

12 July 2002 Magnetic field effects in optical and far IR spectra of LiTmF₄ crystals

R. Yu. Abdulsabirov, A. A. Kazantsev, S. L. Korableva, Boris Z. Malkin, Sergey I. Nikitin, A. L. Stolov, M. S. Tagirov, D. A. Tayurskii, J. van Tol

Author Affiliations +

Proceedings Volume 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions; (2002) https://doi.org/10.1117/12.475349
Event: XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, 2001, Kazan, Russian Federation

Abstract

Splitting of the first excited (Gamma) ¹₃₄(³H₆) doublet state of Tm³⁺ ions in the LiTmF₄ crystal in external magnetic fields up to 11 T has been studied using measurements of luminescence and far RI absorption spectra at low temperatures. In the magnetic field perpendicular to the S₄-symmetry axis of the crystal lattice, the splitting of the non-Kramers doublet is caused by the joint action of the nonlinear Zeeman effect and the piezo spectroscopic effect related to parastriction. Experimental dependences of the doublet splitting on the magnetic field strength and direction are in good correspondence with the theoretical estimations obtained in the framework of the semi phenomenological crystal field model. It is shown that spectroscopic data present direct information on the forced magnetostriction in the basal plane of uniaxial Van Vleck paramagnets that contain non- Kramers rare earth ions.

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R. Yu. Abdulsabirov, A. A. Kazantsev, S. L. Korableva, Boris Z. Malkin, Sergey I. Nikitin, A. L. Stolov, M. S. Tagirov, D. A. Tayurskii, and J. van Tol "Magnetic field effects in optical and far IR spectra of LiTmF₄ crystals", Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); https://doi.org/10.1117/12.475349

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