Enhancement of negative capacitance effect in (CoFeZr)x(CaF2)(100−x) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere

Kołtunowicz, Tomasz N.; Zhukowski, P.; Bondariev, Vitalii; Saad, A.; Fedotova, Julia; Fedotov, А.К.; Milosavljević, M.; Kasiuk, J.

doi:10.1016/j.jallcom.2013.12.125

Cited by 35 publications

(14 citation statements)

References 17 publications

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“…While nitrides of single elements are studied well enough, their multilayer modifications need study that is more detailed [26][27][28][29][30][31][32][33][34][35]. Therefore, the study of features of structure, elemental and phase composition of multilayer coatings depending on the deposition conditions is an important task in solid-state physics and materials science [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51].…”

Section: Introductionmentioning

confidence: 99%

Arc-Evaporated Nanoscale Multilayer Nitride-Based Coatings for Protection Against Wear, Corrosion, and Oxidation

2016

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The studies of the structure and properties of nanoscale multilayer coatings based on the nitrides of refractory metals are summarized in a brief review. By the example of TiN/MoN, TiN/ZrN, CrN/MoN, and more complex (multilayer) (TiZrNbTaHf)N/WN:(TiZrNbTaHf)N/MoN obtained by vacuum-arc deposition of cathode, the dependences of their hardness, wear resistance, friction, corrosion, and oxidation on conditions of the deposition and layers' thickness are investigated and analysed. The regularities of the structure and behaviour properties of such nanoscale multilayer coatings depending on the size of nanograins, textures, and stresses arising in these coatings are described.У короткому огляді узагальнено результати досліджень структури та влас-тивостей наномасштабних багатошарових покриттів нітридів тяжкотоп-ких металів. На прикладі TiN/MoN-, TiN/ZrN-, CrN/MoN-та більш склад-них (багатошарових) (TiZrNbTaHf)N/WN:(TiZrNbTaHf)N/MoN-покриттів, одержаних методою вакуумно-дугового осадження катоду, досліджено та проаналізовано залежності їх твердости, зносостійкости, тертя, корозії й окиснення від умов осадження та товщини шарів. Відмічено закономірнос-ті структури та властивостей поведінки даних наномасштабних багатоша-рових покриттів від розміру нанозерен, текстури та напруг, що виникають у цих покриттях.В кратком обзоре обобщены результаты исследований структуры и свойств наномасштабных многослойных покрытий нитридов тугоплавких метал-лов. На примере TiN/MoN-, TiN/ZrN-, CrN/MoN-и более сложных (много-

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Section: Introductionmentioning

confidence: 99%

Arc-Evaporated Nanoscale Multilayer Nitride-Based Coatings for Protection Against Wear, Corrosion, and Oxidation

2016

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“…Coating deposition parameters, such as the substrate temperature, the flow rate, the energy of atoms and ions incident on the surface of the growing coating, and the deposition rate, have a significant effect on the chemical composition and structure of the coating. It was found that it is necessary to provide a high substrate temperature [53,54] or introduce impurities [8,[55][56][57][58][59][60]] to obtain a superconducting phase of NbN with a critical temperature of about 16 K. The main feature of the currently available magnetron sputtering method [9][10][11] is the possibility of depositing coatings without introducing impurities or heating the substrate to high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Structure and physicomechanical properties of NbN-based protective nanocomposite coatings: A review

Pogrebnjak

Rogoz

Бондар

et al. 2016

Prot Met Phys Chem Surf

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Abstract-This review summarizes the present-day achievements in the study of the structure and properties of protective nanocomposite coatings based on NbN, NbAlN, and NbSiN prepared by a variety of modern deposition techniques. It is shown that a change in deposition parameters has a significant effect on the phase composition of the coatings. Depending on the magnitude of negative potential on the substrate, the pressure of nitrogen or a nitrogen-argon mixture in the chamber, and the substrate temperature, it is possible to obtain coatings containing different phases, such as NbN and SiN x (Si 3 N 4 ), AlN, and NbAl 2 N. It is found that, in the case of formation of the ε-NbN phase, the coatings become very hard; their hardness achieves values on the order of 53 GPa. At the same time, they remain thermally stable at temperatures of up to 600°C, chemically inert, and resistant to wear. The effect of the nanograin size, the volume fraction of boundaries and interfaces, and the point defect concentration on the physicomechanical properties of these coatings is described. Niobium nitride-based coatings can be used in superconducting systems and single-photon detectors; they are capable of operating under the action of strong magnetic fields of up to 20 T; they can be used in integrated logic circuits and applied as protective coatings of machine parts, edges of cutting tools, etc.

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“…Composites composed of ferromagnetic nanoparticles set in a dielectric matrix make an example of such materials. Matrices are the most often made of very stable dielectrics in the form of metal oxides such as Al 2 O 3 [1][2][3] or SiO 2 [4][5][6][7] or of non-oxide dielectrics (oxygen-free matrices) like fluorides CaF 2 [8][9][10] as well as of ferroelectric materials PZT [11][12][13] or materials of low conductivity [14].…”

Section: Introductionmentioning

confidence: 99%

Inductive type properties of FeCoZr–CaF2 and FeCoZr–PZT nanocomposites

Kołtunowicz

2015

J Mater Sci: Mater Electron

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The paper presents investigations into frequency dependences of conductivity, capacitance and the phase angle h for nanocomposites (FeCoZr) x (CaF 2 ) (100-x) and (FeCoZr) x (PZT) (100-x) . The nanocomposites have been produced with the application of ion-beam sputtering using pure argon ions (oxygen-free materials) and mixed ions of argon and oxygen (oxygen materials). The phase angle versus frequency characteristics for the oxygen nanocomposites show a transition from negative to positive phase angle values along with the frequency increase. The maximum observed phase angle h values reach beyond the 90°. The phase angle transition through 0°is accompanied with the voltage resonance phenomenon that is represented by strong minima in the capacitance versus frequency curves. In the conductivity versus frequency characteristics, strong minima occur during the phase angle h transition through 90°, which corresponds to the occurrence of current resonance. Occurrence of the coilless inductance features in nanocomposites (FeCoZr) x (PZT) (100-x) and (FeCoZr) x (CaF 2 ) (100-x) , produced with the ion-beam sputtering using argon and oxygen ions, is related to the formation of a subsurface layer of metal oxides on the metallic phase nanogranules.

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Enhancement of negative capacitance effect in (CoFeZr)x(CaF2)(100−x) nanocomposite films deposited by ion beam sputtering in argon and oxygen atmosphere

Cited by 35 publications

References 17 publications

Arc-Evaporated Nanoscale Multilayer Nitride-Based Coatings for Protection Against Wear, Corrosion, and Oxidation

Arc-Evaporated Nanoscale Multilayer Nitride-Based Coatings for Protection Against Wear, Corrosion, and Oxidation

Structure and physicomechanical properties of NbN-based protective nanocomposite coatings: A review

Inductive type properties of FeCoZr–CaF2 and FeCoZr–PZT nanocomposites

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