physical and magnetic properties

... (2010) xix Publications and Conferences N Thiyagarajah, L Lin, J H Judy, and S Bae, "Effects of NiFe/Co Insertion at the [Pd/Co] and Cu Interface on the Magnetic and GMR Properties in Perpendicularly ... the Pt 5-d band and Co or Fe 3-d band electronic states Some of the key challenges for CoPt and FePt alloys are the reduction of the ordering temperature, and the Chapter Theory and Literature ... soft and hard layer magnetizations along the perpendicular direction during the magnetic reversal of the soft layer by the applied magnetic field was proposed Thirdly, magnetic force microscopy and...

Ngày tải lên: 10/09/2015, 15:53

... Journal of Magnetism and Magnetic Materials, Vol 320 (2008) 857 [6] R.M More, T.J Shinde, N.D Choudhari, P.N Vasambekar, Effect of temperature on X-ray, IR and magnetic properties of nickel ferrite ... the relation and is shown in table with K = HCMS Magnetic structure of ferrite Ni1-xCoxFe2O4 is decribed following [8]: Fe3+ [ Ni2+1-x tetrahedral Co2+x Fe3+ ] O2-4 octahedral The magnetic moment ... K.Chandra, Preparation and characterization of nanosize nickel-substituted cobalt ferrites (Co1-xNixFe2O4), Journal of Solid State Chemistry, Vol 178 (2008) 3183 [3] Z.P Niu, Y Wang, F.S Li, Magnetic...

Ngày tải lên: 13/02/2014, 04:20

... order to determine the magnetization contribution of different magnetic phases, a basic knowledge for the magnetic properties of bulk Fe and its oxides is crucial It is well known that bulk iron (or ... [16] Amorphous Fe2O3 is paramagnetic at temperatures above T N ¼ 80 K with a magnetic moment of 2:5mB per atom of iron [17] The a-Fe2O3 phase is antiferromagnetic (paramagnetic) at temperatures ... arrangement and development of weak ferromagnetism occurs between 260 and 950 K [16] bFe2O3 exhibits paramagnetic behavior at temperatures above 119 K [16] The thermal instability of ferrimagnetic...

Ngày tải lên: 20/03/2014, 13:08

... [16] and as conrmed herein by solution 1H NMR of Pe metMbCN Proximal and distal residues are shown as rectangles and circles, respectively, and arrows connecting heme substituents and residues, and ... Hemoglobin and Myoglobin and Their Reactions with Ligands Elsevier, North-Holland Publishing, Amsterdam, the Netherlands Dickerson, R.E & Geis, I (1983) Hemoglobin: Structure, Function, Evolution and ... points) at 25 C, 30 C and 35 C in order to identify scalar and dipolar connectivities among heme and amino acid residues Spectral widths of 13 kHz and mixing times of 80 ms for NOESY and 50 ms for TOCSY...

Ngày tải lên: 23/03/2014, 17:22

... measurements and data analysis, and drafted the manuscript DG and DX made the conception and design of the manuscript ZZ2 carried out the XPS measurements and data analysis JLZ and ZZ1 participated ... nanowires: Optical properties and room-temperature ferromagnetism J Appl Phys 2010, 108:043516 doi:10.1186/1556-276X-6-587 Cite this article as: Zhang et al.: Synthesis and magnetic properties of ... Synthesis and magnetic properties of Cu-doped ZnO nanowire arrays Electrochim Acta 2009, 54:2392 16 Kim CO, Kim S, Oh HT, Choi SH, Shon Y, Lee S, Hwang HN, Hwang CC: Effect of electrical conduction properties...

Ngày tải lên: 20/06/2014, 22:20

... Fe O nanofluid measured by a VSM Results and discussion Different magnetic cores, air, and Fe3O4 nanofluids of 0.25, 0.5, 0.75, and M were applied as the magnetic core of transformers The inductance ... experimental investigations of electric and magnetic properties of ferro-nanofluids on transformers and prepared the draft, PH proposed the phenomena for investigation and revised the manuscript, DS suggested ... Brownian and Neel relaxation in magnetic fluids J Magn Magn Mater 1999, 201:102-104 doi:10.1186/1556-276X-6-264 Cite this article as: Tsai et al.: Investigation of electrical and magnetic properties...

Ngày tải lên: 21/06/2014, 04:20

... 19 20 21 22 23 24 25 26 Zeng H, Skomski R, Menon L, Liu Y, Bandyopadhyay S, Sellmyer DJ: Structure and magnetic properties of ferromagnetic nanowires in selfassembled arrays Phys Rev B 2002, ... an array of nickel nanotubules and its magnetic behavior Adv Mater 2001, 13:1631-1633 Li DD, Thompson RS, Bergmann G, Lu JG: Template-based synthesis and magnetic properties of cobalt nanotube ... nanoparticles deposited and embedded in AlN: magnetic, magneto-optical, and morphological properties J Appl Phys 2004, 96:1666-1673 40 Zeng AS, Zheng MJ, Ma L, Shen WZ: Formation of uniform and square nanopore...

Ngày tải lên: 21/06/2014, 04:20

... of 355.8 and 93.6 Oe, respectively, for NCs and PSC, saturation magnetizations (Ms) of 125.7 and 162.5 emu/g, respectively, for NCs and PSC, and remnant magnetization (M r ) up to 46.6, and 4.5 ... nickel and cobalt and their magnetic properties Nanoscale Res Lett 2010, 5:164 13 Gangopadhyay S, Hadjipanayis G, Dale B, Sorensen C, Klabunde K, Papaefthymiou V, Kostikas A: Magnetic properties ... external magnetic field and with weak external magnetic field (approx 0.5 T) Conclusion In this study, this proposed method provides a simple and inexpensive method for the preparation of stable, magnetic...

Ngày tải lên: 21/06/2014, 04:20

... Figure The supercell model and total energies for the systems (a) Supercell used to study the (SnO2)1(CrO2)1 SL, and (b) Total energies for the non -magnetic (NM) and anti-ferromagnetic (AFM) states ... states (in black) and project density of states (in gray) for the Cr–3d (b) Total energies for the non magnetic (NM) and anti-ferromagnetic (AFM) states relative to the ferromagnetic (FM) state ... carriers Abbreviations AFM: anti-ferromagnetic; FM: ferromagnetic; GGA-PBE: generalized gradient approximation and the Perdew, Burke, and Ernzerhof; NM: non -magnetic; PDOS: projected density of...

Ngày tải lên: 21/06/2014, 05:20

Ngày tải lên: 21/06/2014, 08:20

... short-tubular structures The roomtemperature and low-temperature magnetic properties of these SNTs were investigated The study of pure c-Fe2O3 SNTs and their magnetic properties is a key issue, not only ... put in a diamagnetic plastic straw and impacted into a minimal volume for magnetic measurements Background 1475 magnetic measurements were checked for the packing material Results and Discussion ... and desorption curves of starting materials and as-prepared c-Fe2O3 SNTs at 77 K Fig Magnetic hysteresis loops at T = 300 K and the enlarged partial hysteresis curves for starting materials and...

Ngày tải lên: 21/06/2014, 17:20

... ions and both the O and the ions in A sites and not contain the vibration of the ions in B sites at all [23, 24] Figure shows the Raman spectra measured at 293 K for the Fe3O4, Zn0.41Fe2.59O4, and ... was fitted by two peaks at 648 and 679 cm-1 In fact, the Raman modes at 653 and 648 cm-1 are ascribed to the oxygen breathing vibrations against zinc; and the 681 and Fig The top view SEM micrographs ... the magnetic moments of the A sites are antiparallel to those of the B sites, so the net magnetic moment of the ZnxFe3-xO4 spinel unite cell is the difference in the magnetic moment between B and...

Ngày tải lên: 21/06/2014, 17:20

... effect [22] and the presence of a magnetic dead or antiferromagnetic layer on the surface [13, 23], which is caused by finite-size effect of the small magnetic nanoparticles Additionally, the magnetic ... kOe at K) The comparisons of 123 the magnetic properties measured at 300 and 10 K for our samples are summarized in Table Figure shows the zero-field-cooled and field-cooled (ZFC/FC) curves of the ... superparamagnetic behavior and narrow size distribution imply that the sample prepared in this work is a good candidate for the possible biomedical applications Fig Zero-field-cooled (ZFC) and field-cooled...

Ngày tải lên: 21/06/2014, 18:20

... nanorods’’ Magnetic properties Magnetic measurements were performed by a Quantum Design SQUID magnetometer equipped with a T magnet and the measurements were conducted between room temperature and K ... cubic MnO and tetragonal Mn3O4 nanowires was reported to be the final product of a synthesis involving thermal evaporation of MnCl2 under argon flow, and the nanowires showed unusual magnetic properties ... of magnetically unstable systems: (i) the shapes of the zfc and fc curves are strongly affected by the applied field and (ii) in the highest field T, the zfc curve even crosses the fc curve and...

Ngày tải lên: 22/06/2014, 22:20

... diversity and to measure the physical and mechanical properties in the tension wood sector as compared to the opposite wood sector, on specimen corresponding to the standard methods MATERIAL AND METHODS ... bending and in compression (MPa), Tangential, radial and longitudinal shrinkage (%), tangential/radial shrinkage ratio (TS/RS) and transversal + radial shrinkage for opposite wood (OW) and tension ... saturated and anhydrous states on the dimension in the saturated state Initial dimensions of the specimens are 20 × 20 × 50 mm3 (RTL) for longitudinal shrinkage and 20 × 20 × 10 mm3 (RTL) for radial and...

Ngày tải lên: 07/08/2014, 16:21

... characteristics for selected trees and total stand; mean radial increment and radial increment of last 10 years (cm), circumference at BH (cm) and total tree height (m) with standard deviations Clone Beaupré ... wood density or mechanical properties and growth rate in P deltoides × nigra The objective of this study is to evaluate the variability in selected physical and mechanical properties of new inter-American ... (Belgium): six ‘Beaupré’, four ‘Hazendans’ and four ‘Hoogvorst’ The trees had all grown on sandy to loamy sand soils with a poor drainage, in adjacent stands with a planting distance of × m Trees...

Ngày tải lên: 07/08/2014, 16:21

... uniform The results of physical and mechanical characterisation of Atlas cedar wood from Southern Italy are summarised on table IV Table V refers about physical and mechanical properties found on ... libani and Cedrus atlantica, with a lot of ornamental cultivars, frequently giving origin to hybrids The Atlas cedar can reach 50 m height and 1.50 m DBH The species is light demanding and cannot ... Molise, Calabria, Sardinia and Sicily Table I Performed tests, dimensions of utilised samples and standard followed for the tests Test type Sample dimension (cm) Standard reference long × transerve...

Ngày tải lên: 08/08/2014, 14:20

Ngày tải lên: 14/11/2014, 07:13

... investigate the electronic and magnetic properties of alkali and alkaline earth metals doped AlN In chapter 3, the electronic and magnetic properties have been discussed for Mg and other alkali (earth) ... chapters 4, and 6; the electronic and magnetic properties have been studied for non-polar, polar and semi-polar surfaces of Mg doped AlN respectively In chapter 7, the electronic and magnetic nature ... zigzag nanowires and the corresponding magnetic hysteresis loop are shown in left and right side of the figure respectively [70] magnetic moments and why these moments favor the ferromagnetic arrangement...

Ngày tải lên: 09/09/2015, 08:12

... Scm-1) and higher than that of an insulator (10-10 Scm-1) In terms of the band structure and band gaps, a band semiconductor should have a forbidden band gap of less eV between its CBM and VBM ... Ariando, Y.P Feng, M.B.H Breese, H Hilgenkamp, T Venkatesan; Effect of Ta alloying on the optical, electronic and magnetic properties of TiO2 thin films xii LIST OF TABLES Table 1.1: Physical Properties ... O K edge of the pure TiO2 and Ti1-xTaxO2 (x~0.06) films grown at 600 and 750°C where µ+ and µ- are parallel and antiparallel alignments between the photon helicity and the sample magnetisation...

Ngày tải lên: 09/09/2015, 18:49