Magnetotransport properties of strontium doped lanthanum manganite nanoconstriction array
Magnetotransport properties of strontium doped lanthanum manganite nanoconstriction array
... MAGNETOTRANSPORT PROPERTIES OF STRONTIUM DOPED LANTHANUM MANGANITE NANOCONSTRICTION ARRAY LIU HUAJUN (B Sc., Jilin University M Sc., Jilin University) A THESIS SUBMITTED FOR THE DEGREE OF ... Comparison of the three non-intrinsic LSMO nanoconstriction Arrays 4.5 Summary 104 4.6 References 106 103 iv Magnetotransport properties of intrinsically ferromagnetic LSMO nanoconstriction arrays ... 114 5.1 Magnetotransport properties 114 5.2 Domain structure of the LSMO nanoconstriction array 117 5.2.1 OOMMF (Object Oriented Micromagnetic Framework) 5.2.2 Simulation results of LSMO nanoconstriction...
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Photonic Properties of Er-Doped Crystalline Silicon
... al.: Photonic Properties of Er-Doped Crystalline Silicon For Si:Er [5], [6], the interest has been fueled by prospective applications for Si-photonics, in view of the full compatibility of Er ... apply Vinh et al.: Photonic Properties of Er-Doped Crystalline Silicon (Bx[ is the position of the line in the spectrum) This value is in good agreement with the separation of lines L2 , L2 , ... limited to: Univ of Calif Santa Barbara Downloaded on June 16, 2009 at 20:39 from IEEE Xplore Restrictions apply 1273 Vinh et al.: Photonic Properties of Er-Doped Crystalline Silicon Fig Secondary...
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gas sensing properties of wo3 doped rutile tio2 thick film at high operating temperature
... Please cite this article in press as: S.-E Jo et al., Gas sensing properties of WO3 doped rutile TiO2 thick film at high operating temperature, Curr Appl Phys (2009), doi:10.1016/j.cap.2009.06.053 ... (2009) xxx–xxx Fig SEM images of the sensing films Fig AFM images of the sensing films Fig XRD patterns of undoped TiO2, 11 wt.% WO3 doped TiO2 and 15 wt.% WO3 doped TiO2 Please cite this article ... affected the area of the sensor surface which related to the number of adsorbed oxygen ions and the gas sensing properties Also, we assumed that the high heat treatment temperature of the sensor...
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synthesis, structure and magnetic properties of iron-doped tungsten oxide nanorods
... 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 its oxides is crucial ... magnetization at K of the asprepared sample in an applied field of T is as large as 56 Am2 =kg, arising from the magnetization of metallic Fe and its oxides Assuming a magnetic moment of 2:2mB per iron...
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Báo cáo hóa học: " Synthesis and magnetic properties of Zr doped ZnO Nanoparticles" docx
... 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 decreases monotonously from 0.0089 μ B /Zr (Zn 0.995 Zr 0.005 O) to 0.0013 μ B /Zr ... content of Zr, and decreases continuously as the increase of the doping Zr content through the magnetic measurement at RT Combining with the results of Raman and XPS, we suppose that the FM of the...
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Báo cáo hóa học: "Photovoltaic Properties of p-Doped GaAs Nanowire Arrays Grown on n-Type GaAs(111)B Substrate" docx
... PV properties of p-doped GaAs NWs array grown on the n -GaAs( 111)B substrate at different substrate temperatures The highest conversation efficiency 1.65% is achieved at 550 °C To the best of our ... has been grown on the GaAs( 111)B semi-insulating substrate at the same growth conditions as used for the NWs samples Electrical measurements (van der Pauw method) confirm n-type doping of the layer ... deposition, the sample surface is treated in oxygen plasma until the tips of GaAs NWs are exposed Conventional Ohmic contacts for the backside of n-type substrate are fabricated by electron-beam...
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Fabrication and properties of manganese doped zinc oxide
... 1.1 Zinc Oxide 1.1.1 The Structure of Zinc Oxide 1.1.2 The Properties of Zinc Oxide 1.1.3 Applications of Zinc Oxide 1.1.4 Doping of Zinc Oxide ... in un -doped and Mn -doped ZnO [9] Obviously, the change in the optical properties is strongly dependent on the method of incorporation of Mn, fabrication conditions, and properties of un -doped ... as zinc interstitials, oxygen vacancies, and extended defects, such as threading dislocations [11] 1.1.2 The Properties of Zinc Oxide 1.1.2.1 Electrical Properties As a direct and large-band-gap...
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gas sensing properties of nanoparticle indium - doped wo3 thick films
... the source of added support of charge that changes the sensing properties of the WO3 -based sensors Conclusions The gas sensing properties of pure and indium- doped nanoparticle WO3 thick films ... images of a pure WO1 thick film surface (a, b) and indium3 doped WO3 thick film with indium concentration of wt.% Fig Responses to ammonia of indium- doped WO3 sensors with indium concentrations of ... the first set of experiments show that the high response of pure WO3 sensing layers (even at Fig Chemical element distribution in the indium- doped WO3 sensor with indium concentration of wt.% 50...
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gas - sensing properties of tin oxide doped with metal oxides and carbon
... image of an MWCNTs -doped SnO2 sol (c); FE-SEM image of an MWCNTs -doped SnO2 (d) Please cite this article in press as: N Van Hieu, et al., Gas- sensing properties of tin oxide doped with metal oxides ... ethanol gas and LPG Please cite this article in press as: N Van Hieu, et al., Gas- sensing properties of tin oxide doped with metal oxides and carbon nanotubes: A competitive sensor for ethanol and ... press as: N Van Hieu, et al., Gas- sensing properties of tin oxide doped with metal oxides and carbon nanotubes: A competitive sensor for ethanol and liquid petroleum gas, Sens Actuators B: Chem...
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structural and photocatalytic properties of iron- and europium-doped tio2
... (2008) 146–153 Fig TEM images of undoped TiO2 (a), Eu-doped TiO2 (b) and Fe- and Eu-doped TiO2 (c) inant for undoped and Fe-doped TiO2 samples (Fig 2a) In Eu-doped TiO2 many elongated particles ... that of TiO2 , suggesting similar Fe and Ti surroundings in the doped and undoped samples In order to verify this statement, the filtered EXAFS of L Diamandescu et al / Materials Chemistry and ... Conclusions Iron- and europium-doped TiO2 nanoparticles were obtained by a hydrothermal route, at mild temperature and pressure (∼200 ◦ C and ∼15 atm, for h) Rietveld refinements of the XRD patterns...
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Báo cáo hóa học: " Structural and physical properties of antibacterial Ag-doped nano-hydroxyapatite synthesized at 100°C" pptx
... Mawatari M, Hotokebuchi T: Development of novel thermal sprayed antibacterial coating and evaluation of release properties of silver ions J Biomed Mater Res B Appl Biomater 2008, 89B:456-465 22 Sanpo ... J: Structural and Chemistry of Apatites and Other Calcium Ortophosphates Amsterdam: Elsevier; 1994 doi:10.1186/1556-276X-6-613 Cite this article as: Ciobanu et al.: Structural and physical properties ... yeast extract at 37°C, followed by centrifuging The supernatants were discarded and Figure Comparative representation of the experimental XRD patterns of the Ca10-xAgx(PO4)6(OH)2 samples synthesized...
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Báo cáo hóa học: " First-Principles Study of Magnetic Properties of 3d Transition Metals Doped in ZnO Nanowires" potx
... energies of transition metals in ZnO nanowires and bulk, and the magnetic coupling properties of the TMs in the two systems A brief summary of the letter is given in Sect ‘‘Summary’’ 481 Fig a The ZnO ... view of the ferromagnetic coupling and antiferromagnetic coupling between the two Cr atoms doped in ZnO nanowires The 3d levels are showed and the energy levels include the p–d interaction The line ... 4:480–484 ZnO- based DMSs is important for their applications, it is of great interest to investigate the chemical trends of defect formation and magnetic couplings of TMs doped in the ZnO nanowire...
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Báo cáo vật lý: "Structural and Dielectric Properties of the Mn-Doped BaO-Nd2O3-4TiO2 System" ppt
... capacitance of the grain and air in the pores It is well known that the capacitance of air is very much less than that of the grains.17 Therefore, the less dense sample has a lower dielectric ... suggests that the grain growth occurs along orthorhombic a or b axes because these axes are longer than the c axis in the orthorhombic structure Structural and Dielectric Properties of the Mn-Doped ... properties of dielectric materials, including the contents of individual crystalline, secondary phases and the degree of densification Therefore, a series of experiments was performed to find the optimum...
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Electronic and magnetic properties of alkali and alkaline earth metals doped AIN bulk to surfaces
... 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) metals doped AlN In ... the prospect of magnetism in other alkali and alkaline earth metals doped AlN from bulk to various surfaces To find out the nature of magnetism from bulk to low-dimension, several factors have been ... origin and stability of ferromagnetism on various Mg doped AlN surfaces and (5) the applicability of observed magnetic phenomenon in Mg doped AlN for the case of other alkali and alkaline earth metals...
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