Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis
Апстракт
Structure and magnetic features of nanostructured materials with general formula Ca1-xYxMnO3 (x = 0; 0.1; 0.2; 0.3) were investigated. Goldschmidt tolerance factor, G, and global instability index, GII were calculated for Ca1-xYxMnO3 (x = 0, 0.25, 0.5, 0.75, 1) using the software SPuDS (Structure Prediction Diagnostic Software) According to these two parameters possibility of forming perovskite structure type for Ca1-xYxMnO3 solid solution was analysed Substitution of Y3+ for Ca2+ provokes reduction of equivalent amount Mn4+ into Mn3+, the presence of which is a reason for many interesting magnetic, transport and structural features of doped CaMnO3 Crystal structure refinement was carried out using Rietveld analysis Ca1-xYxMnO3 (x = 0; 0.1; 0 2; 0.3) has an orthorombic. Pnma space group that, according to Glazers classification belongs to a(-)b(+) a(-) tilt system. Influence of Y amount on Mn-O bond angles and distances, tilting of MnO6 octahedra around all three axes and octahedra def...ormation were analysed. Bond valence calculations (B VC) were performed to determine Mn valence state. Using EPR (electron paramagnetic resonance) magnetic measurements were performed and magnetic properties of solid solutions, orthorombicity degree of unit cell, as well as Mn4+/Mn3+ cations ratio in position B were analysed. Microstructure size-strain analysis was performed and these results are in nanometric range which is confirmed by TEM images.
Кључне речи:
Nanostructured materials / Rietveld analysis / BVC calculations / Magnetic propertiesИзвор:
Science of Sintering, 2010, 42, 2, 221-232Финансирање / пројекти:
- Наноструктурни чврсти раствори за примену у електроници и алтернативним изворима енергије (RS-MESTD-MPN2006-2010-142003)
DOI: 10.2298/SOS1002221Z
ISSN: 0350-820X
WoS: 000283027300010
Scopus: 2-s2.0-78049427378
Колекције
Институција/група
VinčaTY - JOUR AU - Zagorac, Jelena B. AU - Bošković, Snežana B. AU - Matović, Branko AU - Babić-Stojić, Branka S. PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4106 AB - Structure and magnetic features of nanostructured materials with general formula Ca1-xYxMnO3 (x = 0; 0.1; 0.2; 0.3) were investigated. Goldschmidt tolerance factor, G, and global instability index, GII were calculated for Ca1-xYxMnO3 (x = 0, 0.25, 0.5, 0.75, 1) using the software SPuDS (Structure Prediction Diagnostic Software) According to these two parameters possibility of forming perovskite structure type for Ca1-xYxMnO3 solid solution was analysed Substitution of Y3+ for Ca2+ provokes reduction of equivalent amount Mn4+ into Mn3+, the presence of which is a reason for many interesting magnetic, transport and structural features of doped CaMnO3 Crystal structure refinement was carried out using Rietveld analysis Ca1-xYxMnO3 (x = 0; 0.1; 0 2; 0.3) has an orthorombic. Pnma space group that, according to Glazers classification belongs to a(-)b(+) a(-) tilt system. Influence of Y amount on Mn-O bond angles and distances, tilting of MnO6 octahedra around all three axes and octahedra deformation were analysed. Bond valence calculations (B VC) were performed to determine Mn valence state. Using EPR (electron paramagnetic resonance) magnetic measurements were performed and magnetic properties of solid solutions, orthorombicity degree of unit cell, as well as Mn4+/Mn3+ cations ratio in position B were analysed. Microstructure size-strain analysis was performed and these results are in nanometric range which is confirmed by TEM images. T2 - Science of Sintering T1 - Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis VL - 42 IS - 2 SP - 221 EP - 232 DO - 10.2298/SOS1002221Z ER -
@article{ author = "Zagorac, Jelena B. and Bošković, Snežana B. and Matović, Branko and Babić-Stojić, Branka S.", year = "2010", abstract = "Structure and magnetic features of nanostructured materials with general formula Ca1-xYxMnO3 (x = 0; 0.1; 0.2; 0.3) were investigated. Goldschmidt tolerance factor, G, and global instability index, GII were calculated for Ca1-xYxMnO3 (x = 0, 0.25, 0.5, 0.75, 1) using the software SPuDS (Structure Prediction Diagnostic Software) According to these two parameters possibility of forming perovskite structure type for Ca1-xYxMnO3 solid solution was analysed Substitution of Y3+ for Ca2+ provokes reduction of equivalent amount Mn4+ into Mn3+, the presence of which is a reason for many interesting magnetic, transport and structural features of doped CaMnO3 Crystal structure refinement was carried out using Rietveld analysis Ca1-xYxMnO3 (x = 0; 0.1; 0 2; 0.3) has an orthorombic. Pnma space group that, according to Glazers classification belongs to a(-)b(+) a(-) tilt system. Influence of Y amount on Mn-O bond angles and distances, tilting of MnO6 octahedra around all three axes and octahedra deformation were analysed. Bond valence calculations (B VC) were performed to determine Mn valence state. Using EPR (electron paramagnetic resonance) magnetic measurements were performed and magnetic properties of solid solutions, orthorombicity degree of unit cell, as well as Mn4+/Mn3+ cations ratio in position B were analysed. Microstructure size-strain analysis was performed and these results are in nanometric range which is confirmed by TEM images.", journal = "Science of Sintering", title = "Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis", volume = "42", number = "2", pages = "221-232", doi = "10.2298/SOS1002221Z" }
Zagorac, J. B., Bošković, S. B., Matović, B.,& Babić-Stojić, B. S.. (2010). Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis. in Science of Sintering, 42(2), 221-232. https://doi.org/10.2298/SOS1002221Z
Zagorac JB, Bošković SB, Matović B, Babić-Stojić BS. Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis. in Science of Sintering. 2010;42(2):221-232. doi:10.2298/SOS1002221Z .
Zagorac, Jelena B., Bošković, Snežana B., Matović, Branko, Babić-Stojić, Branka S., "Structure and Magnetic Investigations of Ca1+xYxMnO3 (x=0, 0.1, 0.2, 0.3) and Mn4+/Mn3+ Relation Aanalysis" in Science of Sintering, 42, no. 2 (2010):221-232, https://doi.org/10.2298/SOS1002221Z . .