Magnetic properties of hybrid nanostructures 1

... Characterization 11 1 5.3 Results and Discussions 11 2 5.3 .1 Characterization of Ag NC-ZnO NWs by SEM, TEM and XPS 11 2 5.3.2 Effect of Ag NC size on Magnetic Properties of Thiol-capped ... 2 010 , 46, 17 87 iv Chapter Introduction 1. 1 Magnetism in nanostructures 1. 2 Fundamentals of Magnetism 1. 2 .1 Magnetic Anisotropy in low dimensions 10 1. 2.2 ... 10 5 5 .1...

Ngày tải lên: 11/09/2015, 10:07

... (311) (310) (22 0) (20 0) (001) (111) Intensity (Arb units) Ag(111) FePt/Ag20/PS-500°C FePt/Ag20/PS-700°C 20 a b 30 40 60 70 80 90 2 /° Figure 3.6 XRD patterns of FePt deposited on Ag (20 nm) coated ... 19, 25 66 21 Qiu, J M and Wang, J P Appl Phys Lett 20 06, 88, 1 925 05 22 Ulbrich, T C.; Makarov, D.; Hu, G.; Guhr, I L.; Suess, D.; Schrefl, T and Albrecht, M Phy Rev Lett 20 06, 96,...

Ngày tải lên: 11/09/2015, 10:01

... Hc ,35 0K (Oe) Ms,5K (μemucm2 ) Ms ,35 0K (μemucm2 ) C9-(13nm) 1 73 78 23 22 C9-(4nm) 124 48 59 96 AT-(13nm) 1 73 83 14 13 AT-(4nm) 85 48 126 158 FT-(13nm) 107 59 19 16 FT-(4nm) 2 23 61 45 32 5 .3. 3 Anomalous ... localized holes that have lost itinerancy 1.0 Ag L3 edge AgNC-ZnO NW 0.5 0.0 3. 32 AgNC 3. 36 3. 40 3. 44 3. 36 3. 40 3. 44 Energy (keV) Figure 5.9 Ag L3 edge XANES sp...

Ngày tải lên: 11/09/2015, 10:01

... increase up-spin of positions 2a and 2b About the role of La to improve hard magnetic properties of hexagonal ferrite, the Vietnamese researchers have published a large number of publications ... and properties of Sr ferrite, J Phys IV, France (1997) CI 313 [17] N.Chau, N.K.Dung, D.L.Minh, B.T.Cong, High hard magnetic properties of Sr hexagonal ferrite substituted by...

Ngày tải lên: 13/02/2014, 03:20

... 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

... asymptotically the value of the band-gap of the undoped Si-nw This is another indication of how doping can modify the electronic and optical properties of the Si nanostructures Conclusions 3.2 3.4 ... systematic analysis of the effect of the B and P codoping in Si-nw, concentrating not only on the structural properties but also on how doping i...

Ngày tải lên: 16/03/2014, 15:15

... profiles of the Fe-doped tungsten oxide nanorods after annealing in air The inset shows the morphology of the annealed sample and the area for recording EDX spectrum other iron oxides because of the ... in different iron oxides In order to determine the magnetization contribution of different magnetic phases, a basic knowledge for the magnetic properties of bulk Fe and...

Ngày tải lên: 20/03/2014, 13:08

... CbHs CdHs CeHs CfH NH CaH CbH CdHs CeHs NH CaH CbH CdH NH CaH CbH CdHs CeHs CfH NH CaH CbH CbHÂ CdHs CeHs OH NH CaH CbH3 NH CaH CbH CcH3 NH CaH CbH CbHÂ CcH CdH3 CdH3Â NH CaH CbH3 NH CaH CbH ... NH CaH CbH CbHÂ NdH NH CaH CbH CcH3 NH CaH CbH CcH3 CcH3Â NH CaH CbH CbH CdHs CfH NH CaH CaHÂ NH CbH CbHÂ CdHs CeHs CfH NH CaH CbH CdHs CeHs CfH NH CaH CbHs CcH CeH3 CaH CbH CcHs CcHÂ CdH3 3.25 ... po...

Ngày tải lên: 23/03/2014, 17:22

... http://www.nanoscalereslett.com/content/6/1/587 Page of Figure TEM and HRTEM images of Zn0.99 5Zr0 .005O Nps (a) The representative TEM image of Zn0.99 5Zr0 .005O and the inset is the SAED pattern (b) The HRTEM image of Zn0.99 5Zr0 .005O hysteresis ... of Zr Furthermore, the magnetism of the samples depends strongly on the doping Zr content, and Ms per Zr atom decrease...

Ngày tải lên: 20/06/2014, 22:20

... same trend Conclusions In this study, different concentrations of ferro-nanofluids were applied to the magnetic cores of transformers The performance of transformers with magnetic cores of air Figure ... with the MEMS process Authors’ contributions TH performed experimental investigations of electric and magnetic properties of ferro-nanofluids on transformers and pre...

Ngày tải lên: 21/06/2014, 04:20

... characterize magnetic properties of such Co /InP nanocomposites at 300 K with magnetic field sweeping from -15 to 15 KOe Results and discussions Structure characterization of Co /InP nanocomposites ... 47.39°, and 75.89° correspond to hexagonal Co (100), (002), (101), and (110), respectively This further confirms that the obtained sample is that of Co /InP nanocomposites...

Ngày tải lên: 21/06/2014, 04:20

... Phys Condens Matter 2008, 20:075217 doi:10.1186/1556-276X-6-285 Cite this article as: Zhou et al.: Wet chemical synthesis and magnetic properties of single crystal Co nanochains with surface amorphous ... the amorphous passivation shell (marked with the large white arrow) and high-quality crystal core growth The lattice spacing of 8.86 Å (5 × 1.772 Å) i...

Ngày tải lên: 21/06/2014, 04:20

... 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

... the contribution of tunneling effects to the properties of Au nanostructures, which cannot be omitted during electrical measurements of discontinuous metal layers Optically analyzed evolution of ... approximation is a generalization of both the Lorentz oscillator and the Lorentz-Drude models and includes the effect of the free carrier contribution to the dielectric function and...

Ngày tải lên: 21/06/2014, 06:20

Ngày tải lên: 21/06/2014, 08:20