EPR and ENDOR in manganese doped SrTiO.sub.3./sub. : Electric quadrupole interaction and local disorder

0496288 - FZÚ 2019 RIV US eng J - Journal Article
Azamat, Dmitry - Badalyan, A. G. - Baranov, P. G. - Trepakov, Vladimír - Hrabovský, J. - Jastrabík, Lubomír - Dejneka, Alexandr
EPR and ENDOR in manganese doped SrTiO₃ : Electric quadrupole interaction and local disorder.
Journal of Applied Physics. Roč. 124, č. 12 (2018), s. 1-4, č. článku 124101. ISSN 0021-8979. E-ISSN 1089-7550
R&D Projects: GA MŠMT(CZ) LO1409; GA ČR GA16-22092S
Institutional support: RVO:68378271
Keywords : SrTiO3:Mn crystals * Electron paramagnetic resonance (EPR) * Electron nuclear double resonance (ENDOR)
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.328, year: 2018

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 Mn4+ show the presence of electric field gradient associated with the electrical polarization. The observation of EPR signals of rhombic Mn2+ complexes remotely compensated in the SrTiO3 lattice is discussed in connection with local disorder in which Mn2+ appears due to the reduction process.

Permanent Link: http://hdl.handle.net/11104/0289111