Deposition, microstructure and magnetic anisotropy of cobalt ferrite thin films

... anisotropy and growth mechanism of thin films are reviewed, which provides the background to understand this work 1.2 Magnetic anisotropy and coercivity of thin films 1.2.1 Magnetic anisotropy of films ... (111)-epitaxial CoFe2O4 films on (0001)-Al2O3 .79 4.3 Magnetic anisotropy of epitaxial Co -ferrite films 82 4.4 Growth and magnetic anisotropy...

Ngày tải lên: 14/09/2015, 14:12

... done on the effects of layers added to the FePt magnetic layer The focus point of this thesis project is to carry out a systematic study on the influence of additional nonmagnetic layers on the ... performance The effect of additional nonmagnetic layers on the phase transformation of FePt thin films with different substrates is the m...

Ngày tải lên: 13/09/2015, 21:23

... 3: Compositional dependence on the phase transition of FeRh thin films 3.2.2 Magnetic properties of Fe100-xRhx thin films Magnetization of FeRh thin films of various compositions were shown in ... equiatomic and Rh-rich 48 FeRh thin films 4.2.2.2 Magnetic properties of equiatomic and Rh-rich FeRh 49 thin films 4.2.2.3 Temperature dependent...

Ngày tải lên: 02/10/2015, 17:15

... 3: Compositional dependence on the phase transition of FeRh thin films 3.2.2 Magnetic properties of Fe100-xRhx thin films Magnetization of FeRh thin films of various compositions were shown in ... equiatomic and Rh-rich 48 FeRh thin films 4.2.2.2 Magnetic properties of equiatomic and Rh-rich FeRh 49 thin films 4.2.2.3 Temperature dependent...

Ngày tải lên: 06/10/2015, 21:06

... addition of Co2+ ion content, which may be attributed to the ionic radii of constituent ions causing increase in lattice parameter and the densities of pure cobalt ferrite (5.29 g/cm3) and pure nickel ... temperature.These plots show that an increase in Co2+ doping yields monotonic increase in the saturation magnetization of Niferrite which may be due to the substit...

Ngày tải lên: 13/02/2014, 04:20

... MICROSTRUCTURE AND MAGNETIC PROPERTIES OF COZR AND CO- DOPED TIO2 THIN FILMS YAO XIAOFENG A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF ELECTRICAL AND COMPUTER ... spectrum of Iron 38 x Fig.3.1 Saturation magnetization of Co1 -xZrx thin films in as-deposited state 42 Fig.3.2 The development of in-plane and out -of- plane h...

Ngày tải lên: 26/11/2015, 12:15

... analysis, and drafted the manuscript LS and PB conceived of the study HA, ES, LA, and LS participated in the analysis and in the production of a final version of the manuscript All authors read and ... article as: Borges et al.: Electronic and magnetic properties of SnO2/CrO2 thin superlattices Nanoscale Research Letters 2011 6:146 Submit your manuscript to a jou...

Ngày tải lên: 21/06/2014, 05:20

... Ta ratio, (ii) Co- Ta of 15% Ta ratio, (iii) Co- Ta of 20% Ta ratio and (iv) Co- Ta of 25% Ta ratio 68 Fig 4.6.4 MFM images of (i) Co, (ii) Co- Ta (5%), (iii) Co- Ta (10%), (iv) Co- Ta (15%), (v) Co- Ta ... Co- Ta (20%) and (vi) Co- Ta (25%) 69 Fig 4.6.5 TEM images showing the crystal structures of (i) Co- Ta of 10% Ta ratio, (ii) Co-...

Ngày tải lên: 10/11/2015, 11:35

... Properties and Sensor Performance of Zinc Oxide Thin Films by Yongki Min Submitted to the Department of Materials Science and Engineering on August 21, 2003 in Partial Fulfillment of the ... Education 2003 - Ph.D., Materials Science and Engineering, MIT, Cambridge, MA, USA Thesis title: Properties and Sensor Performance of Zinc Oxide Thin Films 1990...

Ngày tải lên: 28/05/2014, 14:44

... resistivity for anatase Ti1- xTaxO2 (x = – 0.08) thin films and rutile Ti1- xTaxO2 (x = 0.08) thin film; (b) Variation of carrier density and Hall mobility for anatase Ti1- xTaxO2 thin films as a function ... transport, optical and magnetic properties appear to be quite distinct 1.2 Defects and Dopings in Semiconductors 1.2.1 Intrinsic and Extrinsic Defects...

Ngày tải lên: 09/09/2015, 18:49

... Long- range and Short -range Orders, and Phase Miscibility of CoCrPt/ Ti Thin Films …………………………………………… …… ….79 5.1 Sample preparation and characterizations.….………………………… …….80 5.2 Magnetic properties ... magnetic recording B: To gain a fundamental understanding of alloying and phase separation of CoCrPt films and their correlations with magnetic properti...

Ngày tải lên: 16/09/2015, 17:11

... Izaki’s method, the incorporation of Zn into magnetite was finished by the deposition of magnetite film on ZnO thin film, so the Zn content of ferrite film and the magnetic properties cannot be well adjusted ... patterns of the ZnxFe3-xO4 ferrite films with x = 0, 0.12, 0.41, 0.77, and 0.99 Figure shows the XRD patterns of the ZnxFe3-xO4 ferrite films with the x values of...

Ngày tải lên: 21/06/2014, 17:20

... 1) Investigation of the material properties and physical parameters of Co/Pd based spinvalves and MTJs with perpendicular anisotropy a Understand the effects of perpendicular anisotropy on the ... coupling and coercivity b Control of perpendicular anisotropy and coercivity of Co/Pd multilayers and spinvalves c Optimization of the spin- valve and MT...

Ngày tải lên: 10/09/2015, 15:53

... encouragements and understanding during past years VI Summary This thesis research dealt with the synthesis and characterization of cobalt ferrite (CoFe2O4) powdered materials, and studied the influences of ... in cobalt ferrite materials, in this thesis research, cobalt ferrite powdered materials are chosen Although the formation of a textured structure in...

Ngày tải lên: 11/09/2015, 09:10

... of NHase seems to form a disulfide bond easily under oxidative conditions, if the site contains no metal ion The metal activator of NHase may incorporate a metal ion to prevent the formation of ... & Endo, I (1999) Functional expression of nitrile hydratase in Escherichia coli: requirement of a nitrile hydratase activator and post-translational modification of a liga...

Ngày tải lên: 16/03/2014, 16:20