Spectroscopic studies of 2H‐PbI 2 (Mn) layered crystals | Zendy

Motsnyi F. V. | Zendy; Dorogan V. G. | Zendy; Kovalyuk Z. D. | Zendy; Okulov S. M. | Zendy; Yaremko A. M. | Zendy

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Spectroscopic studies of 2H‐PbI 2 (Mn) layered crystals

Author(s) -

Motsnyi F. V.,

Dorogan V. G.,

Kovalyuk Z. D.,

Okulov S. M.,

Yaremko A. M.

Publication year - 2005

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200540086

Subject(s) - anharmonicity , electron paramagnetic resonance , exciton , raman spectroscopy , impurity , ion , spectral line , condensed matter physics , lattice vibration , lattice (music) , fermi resonance , chemistry , doping , phonon , exchange interaction , materials science , crystallography , nuclear magnetic resonance , physics , ferromagnetism , optics , acoustics , organic chemistry , astronomy

For the first time we studied Raman, exciton and EPR spectra of PbI 2 layered crystals of 2H polytype doped with high concentration of Mn impurity. A novel type of Fermi resonance was found. The anomalous temperature shift of the exciton band n = 1 was registered. It was shown that this shift can be explained by means of anharmonic vibrations of layered lattice at T < 40 K and low‐frequency optical phonons at T > 40 K. The manifestation of single and exchange‐bound Mn 2+ ions in EPR spectra was observed. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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