TY  - JOUR
AU  - Tadic, Marin M
AU  - Savić, Slavica M.
AU  - Jaglicic, Zvonko
AU  - Vojisavljević, Katarina
AU  - Radojković, Aleksandar
AU  - Perać, Sanja
AU  - Nikolic, Dobrica
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/778
AB  - We present magnetic properties of NiMn2O4-delta (nickel manganite) which was synthesized by complex polymerization synthesis method followed by successive heat treatment and final calcinations in air at 1200 degrees C. The sample was characterized by using X-ray powder diffractometer (XRPD), scanning electron microscopy (SEM), field-emission scanning electron microscopy (FE-SEM) and superconducting quantum interference device (SQUID) magnetometer. The XRPD and FE-SEM studies revealed NiMn2O4-delta phase and good crystallinity of particles. No other impurities have been observed by XRPD. The magnetic properties of the sample have been studied by measuring the temperature and field dependence of magnetization. Magnetic measurements of M(T) reveal rather complex magnetic properties and multiple magnetic phase transitions. We show three magnetic phase transitions with transition temperatures at T-M1 = 35 K (long-range antiferromagnetic transition), T-M2 = 101 K (antiferromagnetic-type transition) and T-M3 = 120 K (ferromagnetic-like transition). We found that the T-M1 transition is strongly dependent on the strength of the applied magnetic field (T-M1 decreases with increasing applied field) whereas the T-M3 is field independent. Otherwise, the T-M2 maximum almost disappears in higher applied magnetic fields (H = 1 kOe and 10 kOe). Magnetic measurements of M(H) show hysteretic behavior below T-M3. Moreover, hysteresis properties measured after cooling of the sample in magnetic field of 10 kOe show exchange bias effect with an exchange bias field vertical bar H-EB vertical bar= 196 Oe. In summary, the properties that distinguish the investigated NiMn2O4-delta sample from other bulk, thin film, ceramic and nanoparticle NiMn2O4-delta systems are the triple magnetic transitions with sharp increase of the ZFC and FC magnetizations at 120 K and the exchange bias effect. The analysis of the results and comparison with literature data allowed us to conjecture that the mixed oxidation states of Mn ions, ferromagnetic and antiferromagnetic sublattice orders and surface effects in the sample tailor these interesting magnetic properties.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect
EP  - 469
SP  - 465
VL  - 588
DO  - 10.1016/j.jallcom.2013.11.025
ER  - 

@article{
author = "Tadic, Marin M and Savić, Slavica M. and Jaglicic, Zvonko and Vojisavljević, Katarina and Radojković, Aleksandar and Perać, Sanja and Nikolic, Dobrica",
year = "2014",
abstract = "We present magnetic properties of NiMn2O4-delta (nickel manganite) which was synthesized by complex polymerization synthesis method followed by successive heat treatment and final calcinations in air at 1200 degrees C. The sample was characterized by using X-ray powder diffractometer (XRPD), scanning electron microscopy (SEM), field-emission scanning electron microscopy (FE-SEM) and superconducting quantum interference device (SQUID) magnetometer. The XRPD and FE-SEM studies revealed NiMn2O4-delta phase and good crystallinity of particles. No other impurities have been observed by XRPD. The magnetic properties of the sample have been studied by measuring the temperature and field dependence of magnetization. Magnetic measurements of M(T) reveal rather complex magnetic properties and multiple magnetic phase transitions. We show three magnetic phase transitions with transition temperatures at T-M1 = 35 K (long-range antiferromagnetic transition), T-M2 = 101 K (antiferromagnetic-type transition) and T-M3 = 120 K (ferromagnetic-like transition). We found that the T-M1 transition is strongly dependent on the strength of the applied magnetic field (T-M1 decreases with increasing applied field) whereas the T-M3 is field independent. Otherwise, the T-M2 maximum almost disappears in higher applied magnetic fields (H = 1 kOe and 10 kOe). Magnetic measurements of M(H) show hysteretic behavior below T-M3. Moreover, hysteresis properties measured after cooling of the sample in magnetic field of 10 kOe show exchange bias effect with an exchange bias field vertical bar H-EB vertical bar= 196 Oe. In summary, the properties that distinguish the investigated NiMn2O4-delta sample from other bulk, thin film, ceramic and nanoparticle NiMn2O4-delta systems are the triple magnetic transitions with sharp increase of the ZFC and FC magnetizations at 120 K and the exchange bias effect. The analysis of the results and comparison with literature data allowed us to conjecture that the mixed oxidation states of Mn ions, ferromagnetic and antiferromagnetic sublattice orders and surface effects in the sample tailor these interesting magnetic properties.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect",
pages = "469-465",
volume = "588",
doi = "10.1016/j.jallcom.2013.11.025"
}

Tadic, M. M., Savić, S. M., Jaglicic, Z., Vojisavljević, K., Radojković, A., Perać, S.,& Nikolic, D.. (2014). Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 588, 465-469.
https://doi.org/10.1016/j.jallcom.2013.11.025

Tadic MM, Savić SM, Jaglicic Z, Vojisavljević K, Radojković A, Perać S, Nikolic D. Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect. in Journal of Alloys and Compounds. 2014;588:465-469.
doi:10.1016/j.jallcom.2013.11.025 .

Tadic, Marin M, Savić, Slavica M., Jaglicic, Zvonko, Vojisavljević, Katarina, Radojković, Aleksandar, Perać, Sanja, Nikolic, Dobrica, "Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect" in Journal of Alloys and Compounds, 588 (2014):465-469,
https://doi.org/10.1016/j.jallcom.2013.11.025 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Tadic, M.
AU  - Jaglicic, Z.
AU  - Vojisavljević, Katarina
AU  - Mančić, Lidija T
AU  - Branković, Goran
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/777
AB  - Structural, electrical and magnetic properties of nickel manganite ceramics obtained by sintering fine powders prepared by a complex polymerization method are given in this work. The phase composition of the synthesized material was examined by x-ray powder diffraction (XRPD). Field-emission scanning electron microscopy (FE-SEM) was used to analyze the obtained powder morphology. Scanning electron microscopy (SEM) was used to analyze the microstructure of sintered ceramics. The activation energy of conduction E-a and the coefficient of temperature sensitivity B-25/100 were calculated from direct current (DC) resistivity measurements. The magnetization dependence of temperature M(T) and alternating current (AC) susceptibility data obtained from SQUID measurements clearly demonstrate that quadruple magnetic phase transitions can be readily detected at T-M1 similar to 115 K, T-M2 similar to 105 K, T-M3 similar to 38 K and T-M4 similar to 7 K. These findings suggest a novel magnetic transition for nickel manganite at low temperature T-M4.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method
EP  - 15521
IS  - 10
SP  - 15515
VL  - 40
DO  - 10.1016/j.ceramint.2014.07.024
ER  - 

@article{
author = "Savić, Slavica M. and Tadic, M. and Jaglicic, Z. and Vojisavljević, Katarina and Mančić, Lidija T and Branković, Goran",
year = "2014",
abstract = "Structural, electrical and magnetic properties of nickel manganite ceramics obtained by sintering fine powders prepared by a complex polymerization method are given in this work. The phase composition of the synthesized material was examined by x-ray powder diffraction (XRPD). Field-emission scanning electron microscopy (FE-SEM) was used to analyze the obtained powder morphology. Scanning electron microscopy (SEM) was used to analyze the microstructure of sintered ceramics. The activation energy of conduction E-a and the coefficient of temperature sensitivity B-25/100 were calculated from direct current (DC) resistivity measurements. The magnetization dependence of temperature M(T) and alternating current (AC) susceptibility data obtained from SQUID measurements clearly demonstrate that quadruple magnetic phase transitions can be readily detected at T-M1 similar to 115 K, T-M2 similar to 105 K, T-M3 similar to 38 K and T-M4 similar to 7 K. These findings suggest a novel magnetic transition for nickel manganite at low temperature T-M4.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method",
pages = "15521-15515",
number = "10",
volume = "40",
doi = "10.1016/j.ceramint.2014.07.024"
}

Savić, S. M., Tadic, M., Jaglicic, Z., Vojisavljević, K., Mančić, L. T.,& Branković, G.. (2014). Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(10), 15515-15521.
https://doi.org/10.1016/j.ceramint.2014.07.024

Savić SM, Tadic M, Jaglicic Z, Vojisavljević K, Mančić LT, Branković G. Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method. in Ceramics International. 2014;40(10):15515-15521.
doi:10.1016/j.ceramint.2014.07.024 .

Savić, Slavica M., Tadic, M., Jaglicic, Z., Vojisavljević, Katarina, Mančić, Lidija T, Branković, Goran, "Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method" in Ceramics International, 40, no. 10 (2014):15515-15521,
https://doi.org/10.1016/j.ceramint.2014.07.024 . .