272 Result(s)
within
Inorganic Chemistry
**-ming Li
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Article
Long-time behavior of field fluctuation in theM-photon Jaynes-Cummings model
In this paper we study the field fluctuation in theM-photon Jaynes-Cummings model. We present the general expression for the field fluctuation and put emphasis on the long time behavior. We find that the field sq...
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Article
The Magnetic Anisotropy of Co-Base Amorphous Alloys
4 Co-base amorphous alloys prepared by rapid quenchling are stress-annealed under different temperature (Ta) balow its crytalline temperature Tcry, after pre-annealing. The effect of magnetic anisotropy with Ta s...
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Article
Dam** and Third-Order Nonlinear Spectrum of Polyacetylene
Experiments have shown that the third-order nonlinear spectrum of trans- polyacetylene has two peaks at 0.6 eV and 0.9 eV respectively. None of the existing theories can give a quantitatively satisfying interpret...
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Article
Structural Characters and Tribological Properties of Diamondlike Carbon Films
Diamond-like carbon films have been prepared by using dual ion beam sputtering deposition under CH++Ne+ bombardment with energies 50–800 eV. The obtained films possess a smooth surface and an amorphous structure ...
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Article
Ultrathin Nitride Films Grown under Low-Energy Ion Bombardment
Bombardment of silicon surfaces by low-energy nitrogen ions has been investigated as a possible process for growing films of silicon nitride at relatively low temperature(<500°C). Broad ion beams of energy 300...
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Article
Investigation of TiC films synthesized by low energy ion bombardment
Low energy bombardment of CHn+ at 100-800 eV has been used to prepare TiC film at room temperature by dual ion beam sputtering. The ion bombardment energies and densities obviously affect the metallographic morph...
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Article
Structural and Electronic Studies of C60 Films Deposited Using a New Technique of Neutral Cluster Beam Deposition
C50 films, are deposited on Si(111) substrates using neutral cluster beams of fullerenes generated from a crucible with a special nozzle. X-ray diffraction (XRD) have been used to investigate the structural prope...
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Article
Studies of C60 Films Deposited Using Ionized Cluster Beam Deposition Technique
Films (with thicknesses about thousands Å) of a new form of carbon allotrope, C60 also known as Fullerenes, are deposited on Si(111) substrates using ionized cluster beam deposition (ICBD) technique at low (65V) ...
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Article
Do** of C60 Films Using High Energy Boron Ion Implantation
C60 films, which are deposited by partially ionized beam deposition (PIBD), are doped by 100 keV boron ion implantation at dose ranging from 3 * 1014 to 1 * 1016 cm2. The implantation process has been studied usi...
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Article
Fragmentation of C60 Molecules in Partially Ionized Fullerene Beam Deposition
C60 films have been deposited using a partially ionized cluster beam deposition (PIBD) technique. The experimental results show that as Va exceeds about 400 V almost all the C60 molecules fragmentate at collision...
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Article
Studies of CN1 Films Deposited by Ion-Beam-Assisted Laser Ablation of Graphite
CN1 thin films have been synthesized by ion-beam-assisted laser ablation of graphite. Films with N-concentration of 45% are obtained, indicated by high energy backseattering spectrum (HEBS). Raman and X-ray photo...
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Article
Ag Films Deposited by Ionized Cluster Beam Deposition
Ionized cluster beam deposition (ICBD) technique has been used to deposit Ag films on both Si(111) and Si(100) substrates. Sizes of clusters in ionized cluster beam are found to distribute in a range of 100-60...
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Article
Nuclear charge distribution in the spontaneous fission of252Cf: Determination of fractional cumulative yields of133mTe and133gTe
The fractional cumulative yields (FCY) of133mTe and133gTe in the spontaneous fission of252Cf were measured for the first time by a radiochemical method. The values ofFCY are 0.533±0.014 and 0.291±0.042 for133mTe ...
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Article
The effects of preparation method on the characteristics of alumina-zirconia powders
Two series of Al2O3-ZrO2 powders with various contents of ZrO2 were synthesized by sol-gel (chemical polymerization) and coprecipitation methods. The effect of ZrO2 content and preparation method on the structure...
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Article
Synthesis and Modification of beta-C3N4 Materials by Ion-Beam Processing
Covalent carbon nitride films have been synthesized by laser ablation and ion-beam coprocessing. Different laser ablations give different ablated graphite plasma. Beta- C3N4 polycrystalline has been found in the ...
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Article
Nonlinear dynamics of a continuum Heisenberg spin chain with an anisotropy and an external magnetic field
By stereographically projecting the spin vector onto a complex plane in the equations of motion for a continuum Heisenberg spin chain with an anisotropy (an easy plane and an easy axis) and an external magneti...
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Article
Structure and properties of carbon nitride films synthesized by low energy ion bombardment
Carbon nitride films have been synthesized at low substrate temperature by Ar+ sputtering a graphite target with concurrent N+ assisted bombardment. It was disclosed that N+ bombardment with low energies of 150–4...
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Article
Inevitable revival of C1 chemistry in the first half of the twenty-first century
The future of fuel production via C1 chemistry is discussed in this paper. Four different processes from coal or natural gas to methanol or gasoline are compared with the present commercialized process from crude...
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Article
Preparation, morphology, and microstructure of diameter-controllable vapor-grown carbon nanofibers
Pure vapor-grown carbon nanofibers (VGCNF’s) with controllable diameters of 10–200 nm were prepared by an improved floating catalyst method. Through transmission electron microscopy (TEM) observation, it was f...
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Article
High corrosion resistant ZrC films synthesized by ion-beamassisted deposition
ZrC films with high hardness were deposited on A3 steel by ion-beam-assisted deposition and had a corrosion rate more than two orders less and a corrosion potential 0.19 V greater than those of the bare A3 ste...
