TY  - JOUR
AU  - Nikolić, Violeta N.
AU  - Milić, Mirjana M.
AU  - Zdravković, Jelena D.
AU  - Spasojević, Vojislav
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5904
AB  - ε-Fe2O3 phase is recognized as an attractive material, in both technological and scientific point of view, since it can achieve very high room-temperature coercivity (10–20 kOe). In this paper, multi-phase samples Fe2O3/SiO2 with slightly different Fe/Si molar ratio were produced by sol–gel synthesis route. The obtained samples were characterized by various experimental techniques including XRD, TA, FTIR, and SQUID (DC and AC magnetic measurements). It was found that both samples consisted of α-Fe2O3 and ε‑Fe2O3 phases embedded in the silica matrix, and showed very similar structural and magnetic properties, except that displayed significantly different room-temperature intrinsic coercivity field values: HciS1 = 14.3 kOe and HciS2 = 7.5 kOe. We have discussed possible origin of thus high intrinsic coercivity field variation. © 2019, Pleiades Publishing, Ltd.
T2  - Russian Journal of Physical Chemistry A
T1  - Origin of the Intrinsic Coercivity Field Variations of ε-Fe2O3
EP  - 383
IS  - 2
SP  - 377
VL  - 93
DO  - 10.1134/S0036024419020316
ER  - 

@article{
author = "Nikolić, Violeta N. and Milić, Mirjana M. and Zdravković, Jelena D. and Spasojević, Vojislav",
year = "2019",
abstract = "ε-Fe2O3 phase is recognized as an attractive material, in both technological and scientific point of view, since it can achieve very high room-temperature coercivity (10–20 kOe). In this paper, multi-phase samples Fe2O3/SiO2 with slightly different Fe/Si molar ratio were produced by sol–gel synthesis route. The obtained samples were characterized by various experimental techniques including XRD, TA, FTIR, and SQUID (DC and AC magnetic measurements). It was found that both samples consisted of α-Fe2O3 and ε‑Fe2O3 phases embedded in the silica matrix, and showed very similar structural and magnetic properties, except that displayed significantly different room-temperature intrinsic coercivity field values: HciS1 = 14.3 kOe and HciS2 = 7.5 kOe. We have discussed possible origin of thus high intrinsic coercivity field variation. © 2019, Pleiades Publishing, Ltd.",
journal = "Russian Journal of Physical Chemistry A",
title = "Origin of the Intrinsic Coercivity Field Variations of ε-Fe2O3",
pages = "383-377",
number = "2",
volume = "93",
doi = "10.1134/S0036024419020316"
}

Nikolić, V. N., Milić, M. M., Zdravković, J. D.,& Spasojević, V.. (2019). Origin of the Intrinsic Coercivity Field Variations of ε-Fe2O3. in Russian Journal of Physical Chemistry A, 93(2), 377-383.
https://doi.org/10.1134/S0036024419020316

Nikolić VN, Milić MM, Zdravković JD, Spasojević V. Origin of the Intrinsic Coercivity Field Variations of ε-Fe2O3. in Russian Journal of Physical Chemistry A. 2019;93(2):377-383.
doi:10.1134/S0036024419020316 .

Nikolić, Violeta N., Milić, Mirjana M., Zdravković, Jelena D., Spasojević, Vojislav, "Origin of the Intrinsic Coercivity Field Variations of ε-Fe2O3" in Russian Journal of Physical Chemistry A, 93, no. 2 (2019):377-383,
https://doi.org/10.1134/S0036024419020316 . .

TY  - JOUR
AU  - Nikolić, Violeta N.
AU  - Milić, Mirjana M.
AU  - Zdravković, Jelena D.
AU  - Spasojević, Vojislav
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5903
AB  - Origin of the intrinsic coercivity field variations observed by hysteretic measurements established by Nikolic et al. was investigated in detail by ZFC/FC measurements. In this study, magnetic behavior of the samples is further examined by calculation of the ZFC Mn(T) and Mn(H) first derivatives. Performed study showed that the main contribution to the measured coercivity comes from the ε-Fe2O3 particles, characterized by Hci = 24 kOe, although both samples posses SPM ε-Fe2O3 fraction. As a result, Hci values of the samples are differed dependent on the quantity of the SPM ε-Fe2O3 particles in the sample. Mechanism of the intrisic coercivity field variations is discussed. © 2019, Pleiades Publishing, Ltd.
T2  - Russian Journal of Physical Chemistry A
T1  - Origin of the Intrinsic Coercivity Field Variations and Magnetic Study of ε-Fe2O3
EP  - 593
IS  - 3
SP  - 588
VL  - 93
DO  - 10.1134/S0036024419030130
ER  - 

@article{
author = "Nikolić, Violeta N. and Milić, Mirjana M. and Zdravković, Jelena D. and Spasojević, Vojislav",
year = "2019",
abstract = "Origin of the intrinsic coercivity field variations observed by hysteretic measurements established by Nikolic et al. was investigated in detail by ZFC/FC measurements. In this study, magnetic behavior of the samples is further examined by calculation of the ZFC Mn(T) and Mn(H) first derivatives. Performed study showed that the main contribution to the measured coercivity comes from the ε-Fe2O3 particles, characterized by Hci = 24 kOe, although both samples posses SPM ε-Fe2O3 fraction. As a result, Hci values of the samples are differed dependent on the quantity of the SPM ε-Fe2O3 particles in the sample. Mechanism of the intrisic coercivity field variations is discussed. © 2019, Pleiades Publishing, Ltd.",
journal = "Russian Journal of Physical Chemistry A",
title = "Origin of the Intrinsic Coercivity Field Variations and Magnetic Study of ε-Fe2O3",
pages = "593-588",
number = "3",
volume = "93",
doi = "10.1134/S0036024419030130"
}

Nikolić, V. N., Milić, M. M., Zdravković, J. D.,& Spasojević, V.. (2019). Origin of the Intrinsic Coercivity Field Variations and Magnetic Study of ε-Fe2O3. in Russian Journal of Physical Chemistry A, 93(3), 588-593.
https://doi.org/10.1134/S0036024419030130

Nikolić VN, Milić MM, Zdravković JD, Spasojević V. Origin of the Intrinsic Coercivity Field Variations and Magnetic Study of ε-Fe2O3. in Russian Journal of Physical Chemistry A. 2019;93(3):588-593.
doi:10.1134/S0036024419030130 .

Nikolić, Violeta N., Milić, Mirjana M., Zdravković, Jelena D., Spasojević, Vojislav, "Origin of the Intrinsic Coercivity Field Variations and Magnetic Study of ε-Fe2O3" in Russian Journal of Physical Chemistry A, 93, no. 3 (2019):588-593,
https://doi.org/10.1134/S0036024419030130 . .