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Zero magnetic field splitting and anomalies of intensities in the Zeeman spectra of La(Pr)Cl3-crystals

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Zeitschrift für Physik B Condensed Matter

Abstract

Optical absorption and Zeeman effect measurements on La(Pr)Cl3 show a zero magnetic field splitting of the degenerate Pr3+ levels\(I^3 H_4 (\bar \mu = \pm 2)\) and\(a^3 P_1 (\bar \mu = \pm 1)\). The site symmetry of the Pr3+ ions is lowered fromC 3h toC s . The resultant splittings of the doublet levels are:I 3 H 4:2|T ak |=(0.12±0.05)cm−1;a 3 P 1:2|T al |=(0.10±0.05)cm−1.

The intensities of the optical transitions induced by the deformation decrease with increasing magnetic field. All observations are described by a first order perturbation calculation using a low symmetric part of the crystal field and Zeeman energy as simultaneous perturbations on a Pr3+ ion in a crystal field with site symmetryC 3h .

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Authors and Affiliations

  1. Institut für Festkörperphysik, Fachgebiet Technische Physik, Technische Hochschule Darmstadt, Darmstadt, Federal Republic of Germany

    W. Fricke

  2. Ringstraße 30, D-7750, Konstanz 19, Federal Republic of Germany

    W. Fricke

Authors
  1. W. Fricke
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Additional information

Project of the “Sonderforschungsbereich Festkörperspektroskopie SFB65”, Darmstadt—Frankfurt, supported by the Deutsche Forschungsgemeinschaft.

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Fricke, W. Zero magnetic field splitting and anomalies of intensities in the Zeeman spectra of La(Pr)Cl3-crystals. Z Physik B 34, 273–278 (1979). https://doi.org/10.1007/BF01325621

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  • DOI: https://doi.org/10.1007/BF01325621

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