Title of article :
Magnetic evidence of different environments of manganese ions in Mn-substituted strontium titanate
Author/Authors :
Azzoni، نويسنده , , C.B. and Mozzati، نويسنده , , M.C. and Paleari، نويسنده , , A. and Massarotti، نويسنده , , V. and Bini، نويسنده , , M. and Capsoni، نويسنده , , D.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Abstract :
Electron paramagnetic resonance (EPR) and static magnetization data on manganese substituted (up to 3 mol%) strontium tintanate (Mn:SrTiO3) samples are presented. Four EPR signals are observed from different Mn4+ and Mn2+ sites. The behavior of their intensity vs. temperature is discussed. It suggests the presence of antiferromagnetic interactions in heavily Mn doped grain boundaries. X-ray diffraction analysis shows two coexisting perovskite-type phases, whose abundance depends on the Mn content.
Keywords :
C. Grain boundaries , C. X-ray scattering , E. Electron paramagnetic resonance , A. Disordered systems
Journal title :
Solid State Communications
Journal title :
Solid State Communications
