Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures composed of MnO, NiO and with small amounts of CoO and Fe(2)O(3) were free surface energy activated by milling in an ultra fast planetary mill for 5, 15, 30, 45 and 60 min. The powders were uniaxially pressed with 196 MPa into discs and sintered at 1200 A degrees C for 60 min. Full characterization of nickel manganite samples was done using SEM, EDS and XRD analysis. The Hall effect was measured at different temperatures (room temperature, 50, 80, 100 and 120 A degrees C) with an applied field of 0.37 T and also 0.57 T at room temperature. The activation energy E (a) (energy of conduction) and the coefficient of temperature sensitivity B (25/80), were calculated from measured resistivity values. The measured mobility, resistivity/conductivity, U-I plots, and Hall coeffi...cients were mutually compared and correlated versus microstructure development and macroscopic parameters such as the powder activation time and ambient temperature.
Keywords:
nickel manganite / hall effect / electrical properties / transport properties
Source:
Journal of Materials Science-Materials in Electronics, 2009, 20, 3, 242-247
Publisher:
Springer, Dordrecht
Funding / projects:
Ministry for Science of the Republic of SerbiaMinistry of Education, Science & Technological Development, Serbia
TY - JOUR
AU - Savić, Slavica M.
AU - Stojanović, Goran M
AU - Nikolić, Maria Vesna
AU - Aleksić, Obrad
AU - Luković Golić, Danijela
AU - Nikolić, Pantelija M.
PY - 2009
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/369
AB - Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures composed of MnO, NiO and with small amounts of CoO and Fe(2)O(3) were free surface energy activated by milling in an ultra fast planetary mill for 5, 15, 30, 45 and 60 min. The powders were uniaxially pressed with 196 MPa into discs and sintered at 1200 A degrees C for 60 min. Full characterization of nickel manganite samples was done using SEM, EDS and XRD analysis. The Hall effect was measured at different temperatures (room temperature, 50, 80, 100 and 120 A degrees C) with an applied field of 0.37 T and also 0.57 T at room temperature. The activation energy E (a) (energy of conduction) and the coefficient of temperature sensitivity B (25/80), were calculated from measured resistivity values. The measured mobility, resistivity/conductivity, U-I plots, and Hall coefficients were mutually compared and correlated versus microstructure development and macroscopic parameters such as the powder activation time and ambient temperature.
PB - Springer, Dordrecht
T2 - Journal of Materials Science-Materials in Electronics
T1 - Electrical and transport properties of nickel manganite obtained by Hall effect measurements
EP - 247
IS - 3
SP - 242
VL - 20
DO - 10.1007/s10854-008-9710-5
ER -
@article{
author = "Savić, Slavica M. and Stojanović, Goran M and Nikolić, Maria Vesna and Aleksić, Obrad and Luković Golić, Danijela and Nikolić, Pantelija M.",
year = "2009",
abstract = "Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures composed of MnO, NiO and with small amounts of CoO and Fe(2)O(3) were free surface energy activated by milling in an ultra fast planetary mill for 5, 15, 30, 45 and 60 min. The powders were uniaxially pressed with 196 MPa into discs and sintered at 1200 A degrees C for 60 min. Full characterization of nickel manganite samples was done using SEM, EDS and XRD analysis. The Hall effect was measured at different temperatures (room temperature, 50, 80, 100 and 120 A degrees C) with an applied field of 0.37 T and also 0.57 T at room temperature. The activation energy E (a) (energy of conduction) and the coefficient of temperature sensitivity B (25/80), were calculated from measured resistivity values. The measured mobility, resistivity/conductivity, U-I plots, and Hall coefficients were mutually compared and correlated versus microstructure development and macroscopic parameters such as the powder activation time and ambient temperature.",
publisher = "Springer, Dordrecht",
journal = "Journal of Materials Science-Materials in Electronics",
title = "Electrical and transport properties of nickel manganite obtained by Hall effect measurements",
pages = "247-242",
number = "3",
volume = "20",
doi = "10.1007/s10854-008-9710-5"
}
Savić, S. M., Stojanović, G. M., Nikolić, M. V., Aleksić, O., Luković Golić, D.,& Nikolić, P. M.. (2009). Electrical and transport properties of nickel manganite obtained by Hall effect measurements. in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 20(3), 242-247.
https://doi.org/10.1007/s10854-008-9710-5
Savić SM, Stojanović GM, Nikolić MV, Aleksić O, Luković Golić D, Nikolić PM. Electrical and transport properties of nickel manganite obtained by Hall effect measurements. in Journal of Materials Science-Materials in Electronics. 2009;20(3):242-247.
doi:10.1007/s10854-008-9710-5 .
Savić, Slavica M., Stojanović, Goran M, Nikolić, Maria Vesna, Aleksić, Obrad, Luković Golić, Danijela, Nikolić, Pantelija M., "Electrical and transport properties of nickel manganite obtained by Hall effect measurements" in Journal of Materials Science-Materials in Electronics, 20, no. 3 (2009):242-247,
https://doi.org/10.1007/s10854-008-9710-5 . .
