10 Result(s)
within
X. X. Zhang
Inorganic Chemistry
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Article
Improved photocatalytic activity of Z-scheme β-Bi2O3/Bi2WO6 nanocomposites from band bending of p-n heterojunction
Photocatalytic β-Bi2O3/Bi2WO6 p-n heterojunctions were synthesized by two-step solvothermal method, and then, the phase structure, microstructures, and band structures were characterized with XRD, EDS, N2 adsorpt...
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Article
Facet-Facet Barrier on Surfaces: Proposal and Experimental Validation
Surface processing is generally kinetics limited. Migration barriers, both on flat surfaces and near steps, therefore are of crucial importance. In this paper, we describe a kinetic barrier that separates two ...
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Article
Multiple Layers of Copper Thin Films of Alternating Textures
In this paper, we present a preliminary study of texture development during copper thin film deposition. Using direct current (DC) magnetron sputtering technique, we deposit copper films on a SiO2/Si(111) substra...
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Article
Superparamagnetic Behavior of Granular Co-C Films Consisting of Nanocrystalline Cobalt Encapsulated in Carbon
Nanocomposite Co-C thin films of about 15 nm thick were prepared by pulsed filtered vacuum arc deposition. The films were characterized by x-ray photoelectron spectroscopy, non-Rutherford backscattering spectr...
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Article
GMR Effect and Properties of CoAg Granular Films Formed by Implantation with a Metal Vapor Vacuum Arc Ion Source
Cobalt-silver granular thin films were formed by Co implantation into Ag using a metal vapor vacuum arc (MEVVA) ion source. The magnetic field dependence and the temperature variation of the giant magnetoresis...
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Article
Macroscopic Probing of the Joint Between Metals in Mr Heads
During the wafer manufacturing process of magnetoresistive (MR) heads which are widely used in Hard Disk Drives, the metal leads are deposited on both sides of the MR sensing element through the photoresist ma...
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Article
Magnetic and magnetotransport properties in Co5Cu95 melt-spun alloys
Giant magnetoresistance (GMR) has been observed in Co5Cu95 alloys fabricated by melt-spinning. The highest MR change of 28.0% occurs for Co5Cu95 after annealing at 450°C for 30 min. Based on the super-paramagneti...
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Article
Improved giant magnetoresistance in magnetic granular Co5 Cu95 alloys by direct-current joule heating
The dc joule heating technique has been used to produce giant magnetoresistance (GMR) Co5Cu95 granular alloys. At T=10 K, GMR as large as 28.5% has been observed in the as-quenched sample annealed with I=6A in a ...
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Article
Improved giant magnetoresistance in magnetic granular Co5 Cu95 alloys by direct-current joule heating
The dc joule heating technique has been used to produce giant magnetoresistance (GMR) Co5Cu95 granular alloys. At T=10 K, GMR as large as 28.5% has been observed in the as-quenched sample annealed with I=6A in a ...
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Article
Magnetic relaxation in very thin films of Dy deposited onto crystalline Cu(111)
Magnetic relaxation measurements of very thin Dy films of thickness 20 Å and 40 Å have been performed in the temperature range 1.8 K–20 K. Below the blocking temperature, the magnetic viscosity decreases when ...
