Author
Ibro Tabakovic
Other affiliations: Seagate Technology
Bio: Ibro Tabakovic is an academic researcher from University of Minnesota. The author has contributed to research in topics: Layer (electronics) & Coercivity. The author has an hindex of 23, co-authored 99 publications receiving 1476 citations. Previous affiliations of Ibro Tabakovic include Seagate Technology.
Topics: Layer (electronics), Coercivity, Vindoline, Catharanthine, Perchlorate
Papers published on a yearly basis
Papers
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TL;DR: In this article, the properties of soft magnetic CoNiFe films electrodeposited in the presence of saccharin and sodium lauryl sulfate additives were studied in terms of their thickness and substrate dependence.
Abstract: The properties of soft magnetic CoNiFe films electrodeposited in the presence of saccharin and sodium lauryl sulfate additives were studied in terms of their thickness and substrate dependence. Auger depth profile analysis of the elemental composition in CoNife films electrodeposited over different substrates (Pd 00 Ni 10. 1.0 T NiFe.Cu) demonstrate that the average composition at the substrate interface and bulk deposited films remains constant. X-ray diffraction (XRD) measurements reveal the existence of mixed fcc + bcc phase with larger amounts of bcc crystallites near the substrate side of the films, i.e.,at the lower thickness. XRD and transmission electron microscopy measurements revealed a larger grain size at the CoNiFe/substrate interface. The measured average stress is both substrate- and thickness-dependent. The easy-axis coercivity, H c , follows the Neel's relation H c = ct n (t is the thickness and c is a constant). It was found that the value of the exponent n is substrate dependent. Mechanisms related to the coercivity of CoNiFe films deposited ovar different substrates (1.0 T NiFe, Cu, Pd 90 Ni 10 , high magnetic moment CoNiFe) are discussed in terms of material properties of these magnetic films.
110 citations
TL;DR: In this article, the organic additives present in the plating bath are one of the most important factors in obtaining soft magnetic materials, and the results demonstrated a strong influence of different additives in the electrolyte on current efficiency, electrode kinetics, alloy composition, anomalous order of codeposition, corrosion resistivity, saturation magnetic flux density, coercivity and stress in CoNiFe films.
Abstract: Electrochemical preparation of CoNiFe films was investigated from the viewpoint that the organic additives present in the plating bath are one of the most important factors in obtaining soft magnetic materials. Soft CoNiFe films with Bs 5 1.2 to 2.0 T were obtained by plating in the presence of different additives. The results demonstrated a strong influence of different additives present in the electrolyte on current efficiency, electrode kinetics, alloy composition, anomalous order of codeposition, corrosion resistivity, saturation magnetic flux density, coercivity, and stress in CoNiFe films.
85 citations
TL;DR: In this article, the electrochemical synthesis of coumestan derivatives and some related heterocyclic system (2a-11a) by anodic oxidation of catechol in the presence of various nucleophiles 2-11 is described.
71 citations
TL;DR: In this article, a magnetic field of 0.1 T was applied parallel to the cathode to increase the current for solutions containing Ni +2, Fe +2 and H + ions.
Abstract: Enhancement of current for solutions, containing Ni +2 , Fe +2 , and H + ions, has been observed by linear sweep voltammetry and chronoamperometry when a magnetic field of 0.1 T was applied parallel to the cathode. The current enhancement in a magnetic field was attributed to the convection near the electrode surface induced by the Lorentz force. There is a decrease of the Fe content in NiFe films by approximately 4% obtained with applied magnetic field. It was also demonstrated that the applied magnetic field affects the magnetic properties, crystalline structure and/or texture, stress, and surface roughness of NiFe films.
60 citations
TL;DR: In this paper, the effect of 3-N,N-dimethylaminodithiocarbamoyl-1-propanesulphonic acid (DPS) and polyethylene glycol (PEG, MW=8000) on structure, surface roughness, and resistivity of copper electrodeposited from a sulfate-sulfuric acid bath was studied by X-ray diffraction (XRD), atomic force microscopy (AFM), and four-point probe measurements.
59 citations
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01 Sep 1955
TL;DR: In this paper, the authors restrict their attention to the ferrites and a few other closely related materials, which are more closely related to anti-ferromagnetic substances than they are to ferromagnetics in which the magnetization results from the parallel alignment of all the magnetic moments present.
Abstract: In this chapter, we will restrict our attention to the ferrites and a few other closely related materials. The great interest in ferrites stems from their unique combination of a spontaneous magnetization and a high electrical resistivity. The observed magnetization results from the difference in the magnetizations of two non-equivalent sub-lattices of the magnetic ions in the crystal structure. Materials of this type should strictly be designated as “ferrimagnetic” and in some respects are more closely related to anti-ferromagnetic substances than they are to ferromagnetics in which the magnetization results from the parallel alignment of all the magnetic moments present. We shall not adhere to this special nomenclature except to emphasize effects, which are due to the existence of the sub-lattices.
2,659 citations
TL;DR: A review about electroluminescence from organic materials and deals in detail with organic light-emitting diodes (OLEDs), lightemitting electrochemical cells (LECs) and electrogenerated chemilumi-nescence (ECL) reflecting different electrooptical appli-cations of conjugated materials as mentioned in this paper.
Abstract: This article provides a review about electroluminescence from organic materials and deals in detail with organic light-emitting diodes (OLEDs), light-emitting electro-chemical cells (LECs) and electrogenerated chemilumi-nescence (ECL) reflecting different electrooptical appli-cations of conjugated materials. It is written from an organic chemist's point of view and pays particular attention to the development of organic materials involved in corresponding devices. In recent years a substantial amount of both academic and industrial research has been directed to organic electroluminescence in an effort to improve the processability and tunability of organic materials and the longevity of OLEDs and LECs. On the eve of the commercialization of organic electrolumi-nescence this review provides an overview of lifetimes and efficiencies attained and reflects materials and device concepts developed over the last decade. In this context electrogenerated chemiluminescence is discussed with respect to its importance as a versatile tool to simulate the fundamental electrochemical processes in OLEDs.
1,657 citations
1,282 citations
TL;DR: Dithieno[3,2-b:2′3′-d]thiophene-4,4-dioxides 1221 3.3.1.
Abstract: 3.2. Thienothiophenes 1216 3.2.1. Thieno[3,4-b]thiophene Analogues 1216 3.2.2. Thieno[3,2-b]thiophene Analogues 1217 3.2.3. Thieno[2,3-b]thiophene Analogues 1218 3.3. , ′-Bridged Bithiophenes 1219 3.3.1. Dithienothiophene (DTT) Analogues 1220 3.3.2. Dithieno[3,2-b:2′3′-d]thiophene-4,4-dioxides 1221 3.3.3. Dithienosilole (DTS) Analogues 1221 3.3.4. Cyclopentadithiophene (CPDT) Analogues 1221 3.3.5. Nitrogen and Phosphor Atom Bridged Bithiophenes 1222
1,224 citations
TL;DR: A review of the historical roles that quantized building blocks such as atoms and monomers have played in the development of small molecule and traditional polymer synthesis, respectively, is presented in this article, where the unique features of traditional macromolecular architectures (i.e. linear, crosslinked, branched), as well as controlled nanostructures in biology were used as frames of reference to anticipate potential new properties, phenomena and synthetic constructs that should be expected to emerge at the interface of the dendritic architectural state.
1,037 citations