TY  - JOUR
AU  - Kasiuk, J.
AU  - Fedotova, J.
AU  - Przewoznik, J.
AU  - Kapusta, Cz.
AU  - Skuratov, Vladimir A.
AU  - Milosavljević, Momir
AU  - Bondariev, V.
AU  - Koltunowicz, T. N.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7087
AB  - The paper reports on the results of structural analysis and magnetometry of granular nanocomposite films FeCoZr-CaF2 irradiated with Xe and Kr ions at different fluences. The observed effect of enhanced perpendicular magnetic anisotropy characterizing pristine films is discussed with respect to the irradiation regimes and structural changes of the films originating from the impact of ions.
T2  - Acta Physica Polonica A
T1  - Ion-Induced Modification of Structure and Magnetic Anisotropy in Granular FeCoZr-CaF2 Nanocomposite Films
VL  - 128
IS  - 5
SP  - 828
EP  - 831
DO  - 10.12693/APhysPolA.128.828
ER  - 

@article{
author = "Kasiuk, J. and Fedotova, J. and Przewoznik, J. and Kapusta, Cz. and Skuratov, Vladimir A. and Milosavljević, Momir and Bondariev, V. and Koltunowicz, T. N.",
year = "2015",
abstract = "The paper reports on the results of structural analysis and magnetometry of granular nanocomposite films FeCoZr-CaF2 irradiated with Xe and Kr ions at different fluences. The observed effect of enhanced perpendicular magnetic anisotropy characterizing pristine films is discussed with respect to the irradiation regimes and structural changes of the films originating from the impact of ions.",
journal = "Acta Physica Polonica A",
title = "Ion-Induced Modification of Structure and Magnetic Anisotropy in Granular FeCoZr-CaF2 Nanocomposite Films",
volume = "128",
number = "5",
pages = "828-831",
doi = "10.12693/APhysPolA.128.828"
}

Kasiuk, J., Fedotova, J., Przewoznik, J., Kapusta, Cz., Skuratov, V. A., Milosavljević, M., Bondariev, V.,& Koltunowicz, T. N.. (2015). Ion-Induced Modification of Structure and Magnetic Anisotropy in Granular FeCoZr-CaF2 Nanocomposite Films. in Acta Physica Polonica A, 128(5), 828-831.
https://doi.org/10.12693/APhysPolA.128.828

Kasiuk J, Fedotova J, Przewoznik J, Kapusta C, Skuratov VA, Milosavljević M, Bondariev V, Koltunowicz TN. Ion-Induced Modification of Structure and Magnetic Anisotropy in Granular FeCoZr-CaF2 Nanocomposite Films. in Acta Physica Polonica A. 2015;128(5):828-831.
doi:10.12693/APhysPolA.128.828 .

Kasiuk, J., Fedotova, J., Przewoznik, J., Kapusta, Cz., Skuratov, Vladimir A., Milosavljević, Momir, Bondariev, V., Koltunowicz, T. N., "Ion-Induced Modification of Structure and Magnetic Anisotropy in Granular FeCoZr-CaF2 Nanocomposite Films" in Acta Physica Polonica A, 128, no. 5 (2015):828-831,
https://doi.org/10.12693/APhysPolA.128.828 . .

TY  - JOUR
AU  - Koltunowicz, T. N.
AU  - Zhukowski, P.
AU  - Bondariev, V.
AU  - Saad, A.
AU  - Fedotova, J. A.
AU  - Fedotov, A. K.
AU  - Milosavljević, Momir
AU  - Kasiuk, J. V.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7040
AB  - The paper presents frequency f and temperature T-p dependences of phase shift angle Theta, admittance sigma and capacitance C-p for the as-deposited and annealed (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion-beam sputtering of a compound target in a mixed argon-oxygen gas atmosphere in vacuum chamber. The studied films presented metallic FeCoZr cores covered with FeCo-based oxide shells embedded into oxygen-free dielectric matrix (fluorite). It was found for the metallic phase content within the range of 52.2 at.% LT = x LT = 84.3 at.% in low-f region that Theta values were negative, while in the high-f region we observed the Theta LT 0 degrees. It was obtained that the f-dependences of capacitance module displayed minimum at the corresponding frequency when the Theta(f) crossed its zero line Theta = 0 degrees. It was also observed that the sigma(T-p) dependence displayed the occurrence of two minima that were related to the values of Theta(1) = 90 degrees (the first minimum) and of Theta(2)= -90 degrees (the second one). Some possible reasons of such behavior of (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films are discussed. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Enhancement of negative capacitance effect in (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere
VL  - 615
SP  - S361
EP  - S365
DO  - 10.1016/j.jallcom.2013.12.125
ER  - 

@article{
author = "Koltunowicz, T. N. and Zhukowski, P. and Bondariev, V. and Saad, A. and Fedotova, J. A. and Fedotov, A. K. and Milosavljević, Momir and Kasiuk, J. V.",
year = "2014",
abstract = "The paper presents frequency f and temperature T-p dependences of phase shift angle Theta, admittance sigma and capacitance C-p for the as-deposited and annealed (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion-beam sputtering of a compound target in a mixed argon-oxygen gas atmosphere in vacuum chamber. The studied films presented metallic FeCoZr cores covered with FeCo-based oxide shells embedded into oxygen-free dielectric matrix (fluorite). It was found for the metallic phase content within the range of 52.2 at.% LT = x LT = 84.3 at.% in low-f region that Theta values were negative, while in the high-f region we observed the Theta LT 0 degrees. It was obtained that the f-dependences of capacitance module displayed minimum at the corresponding frequency when the Theta(f) crossed its zero line Theta = 0 degrees. It was also observed that the sigma(T-p) dependence displayed the occurrence of two minima that were related to the values of Theta(1) = 90 degrees (the first minimum) and of Theta(2)= -90 degrees (the second one). Some possible reasons of such behavior of (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films are discussed. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Enhancement of negative capacitance effect in (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere",
volume = "615",
pages = "S361-S365",
doi = "10.1016/j.jallcom.2013.12.125"
}

Koltunowicz, T. N., Zhukowski, P., Bondariev, V., Saad, A., Fedotova, J. A., Fedotov, A. K., Milosavljević, M.,& Kasiuk, J. V.. (2014). Enhancement of negative capacitance effect in (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere. in Journal of Alloys and Compounds, 615, S361-S365.
https://doi.org/10.1016/j.jallcom.2013.12.125

Koltunowicz TN, Zhukowski P, Bondariev V, Saad A, Fedotova JA, Fedotov AK, Milosavljević M, Kasiuk JV. Enhancement of negative capacitance effect in (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere. in Journal of Alloys and Compounds. 2014;615:S361-S365.
doi:10.1016/j.jallcom.2013.12.125 .

Koltunowicz, T. N., Zhukowski, P., Bondariev, V., Saad, A., Fedotova, J. A., Fedotov, A. K., Milosavljević, Momir, Kasiuk, J. V., "Enhancement of negative capacitance effect in (CoFeZr)(x)(CaF2)((100-x)) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere" in Journal of Alloys and Compounds, 615 (2014):S361-S365,
https://doi.org/10.1016/j.jallcom.2013.12.125 . .