EPR and ENDOR in manganese doped SrTiO3: Electric quadrupole interaction and local disorder

Electron paramagnetic resonance (EPR) and electron nuclear double resonance (ENDOR) studies were performed on heavily manganese doped SrTiO3 crystals. At low temperatures ( T ≈ 6 K), the ENDOR measurements on Mn T i 4 + show the presence of electric field gradient associated with the electrical pola...

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Bibliographic Details
Published in:Journal of applied physics 2018-09, Vol.124 (12)
Main Authors: Azamat, D. V., Badalyan, A. G., Baranov, P. G., Trepakov, V. A., Hrabovsky, M., Jastrabik, L., Dejneka, A.
Format: Article
Language:English
Subjects:
Applied physics
Electron paramagnetic resonance
Manganese
Quadrupole interaction
Quadrupoles
Remote observing
Strontium titanates
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Summary:Electron paramagnetic resonance (EPR) and electron nuclear double resonance (ENDOR) studies were performed on heavily manganese doped SrTiO3 crystals. At low temperatures ( T ≈ 6 K), the ENDOR measurements on Mn T i 4 + show the presence of electric field gradient associated with the electrical polarization. The observation of EPR signals of rhombic Mn 2 + complexes remotely compensated in the SrTiO3 lattice is discussed in connection with local disorder in which Mn 2 + appears due to the reduction process.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5038958