Materials Literature
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Written transition curvature in perpendicular magnetic recording is generally understood to result in increased transition jitter noise and degraded signal to noise ratio or byte error rate (BER) performance. For the shingle writing scheme, asymmetry or curvature in written tracks is considered inherent due to the era…
It is shown that the flow diagrams for the conductivities in the quantum Hall effect, arising from two ostensibly very different proposals based on modular symmetry, are in fact identical. The β-functions are different, the rates at which the flow lines are traversed are different, but the tangents to the flow lines a…
The effect of temperature on the connectivity of hydrogen bonds in the hydration shells of the islet amyloid polypeptides (IAPPs) is studied by means of computer simulations. The hydrogen-bonded network of hydration water homogeneously envelopes a peptide at low temperature and breaks into an ensemble of small cluster…
We present two families of optical processor arrays. One family uses a pair of complex conjugate phase arrays for implementing a varifocal lenslet array, which is useful for axial scanning. The other family uses a different pair of complex conjugate phase arrays for controlling the depth of field in a telecentric proc…
Ein poröses Gel mit winkelunabhängiger Strukturfarbe wird leicht durch einen Selbstorganisationsansatz erhalten. Beim Quellen wechselt das Gel reversibel seine Farbe auf Veränderungen von Lösungsmittel und Temperatur hin, weil die Wellenlängendispersionen der Brechungsindizes von Gel und in den Poren eingeschlossenem…
Electronic transport and magnetization measurements were carried out on La 0.7 Ca 0.3 MnO 3 /YBa 2 Cu 3 O 7−δ (LCMO/YBCO) bilayers below the superconducting transition temperature in order to study the interaction between magnetism and superconductivity. This study shows that a substantial number of weakly pinned vort…
Pb-doped ZnO nanostructures were prepared using millisecond pulse-width laser ablation. Nanoparticle chains formed when the laser ablation was performed in air or on a pure Zn target, and when Ar flow was introduced it could be used to mediate the nucleation and growth of crystalline nanorods from a composite Zn/Pb ta…
SnO 2 cluster-system structures were synthesized via a two-step temperature-rising thermal evaporation method with short oxidation time. Field emission scanning electron microscopy, X-ray diffraction and transmission electron microscopy were used to characterize the morphological and structural feature of the product…
Equiatomic MnAu clusters with average sizes of 4 and 10 nm are produced by inert-gas condensation. As-produced clusters are used to form both dense cluster films and films with clusters embedded in a W matrix with a cluster volume fraction of 25%. Both structure and magnetism are size-dependent. Structural analysis of…
In order to produce the colored cocoons we finalized the adequate amount of dyes throughout several trial and error experiments. The proper amount of each dye required for per 100 g of each colored cocoon turned out to be 150 mg of Rhodamine, 1560 mg of Thionin, 170 mg of Neutral red, and 200 mg of N-Blue, respectivel…
Abstract A novel oxo-centered trinuclear mixed-metal carboxylate complex with unsaturated bridging ligands [Fe2Cr(µ3-O)(C3H3O2)6(H2O)3]·NO3·4H2O has been synthesized and characterized by means of Elemental analyses, Infrared spectroscopy and Crystal structure analysis. The compound crystallizes isotypically in the mon…
The self-action of light in birefringent mesoporous silicon films is studied using picosecond laser pulses. Two mechanisms of self-action of light in mesoporous silicon are found. One of them manifests itself at laser intensities below 3 MW cm -2 and tends to saturation. The other dominates at intensities above 10 MW…
Abstract Summary: Extraction of residual monomer from a latex product with supercritical carbon dioxide ((sc)CO2) in a column was studied. Operating conditions were chosen at 35 °C and 100 bar. For reducing the residual styrene level in a polystyrene latex from 104 ppm to 100 ppm and from 104 ppm to 10 ppm, a counterc…
Phosphorylated derivatives of calix[4]arene were evaluated as inhibitors of glutathione S-transferase. Computer-simulated docking studies showed that phosphorylated macrocycle is located near the G-site of the enzyme.
β-Secretase is one of the aspartic proteases involved in the formation of amyloid plaques in Alzheimer's disease patients. Our previous results using a combination of surface plasmon resonance experiments with molecular modeling calculations suggested that the Asp dyad in β-secretase bound to hydroxylethylene containi…
Ferromagnetic microstructured films of Ni80Fe20 with in-plane uniaxial anisotropy were prepared by RF magnetron sputtering and patterned into rectangles with the larger dimension parallel to the easy axis. Static properties have been measured using a magneto-optic-Kerr-effect test bench, and dynamic properties were al…
Abstract Magnetoresistance and Hall resistance measurements have been used to investigate the electronic transport properties of AlGaN/GaN based HEMTs. The Shubnikov–de Haas (SdH) oscillations from magnetoresistance, is obtained by fitting the nonoscillatory component to a polynomial of second degree, and then subtrac…
한반도 남동부에 자리잡고 있는 제3기 분지 중에서 장기, 어일 분지에 대한 암석학적인 기재 및 지화학적 자료를 바탕으로 과거 조구조적 위치와 현무암질암을 생성한 기원마그마의 특성을 고찰하였다. 어일 현무암질 암내 사장석 반정에서는 여러 형태의 누대구조와 융식구조 및 체구조가 나타나며 반정의 성분변화에서 핵부분은 $An_{63.46-98.38}\;Ab_{1.62-32.96}\;Or_{0-3.58}$ 의 영역 (anorthite-labradorite)에 도시되고, 최외각은 $An_{40.89-82.44}\;Ab_{17.10-46.43}\;Or_{0-12.68}$ 의 영…
Abstract The resistivity of ZnTe powders has been measured under high pressure up to 29 GPa and temperature ranged from 303.0 to 403.0 K by using a diamond anvil cell. The resistivity changed discontinuously at 9.5 and 13.1 GPa, corresponding to the phase transitions from zinc blende to cinnabar and then to Cmcm struc…
A positron annihilation age-momentum correlation (AMOC) technique using a digital oscilloscope with high time resolution enabled us to directly estimate positron trapping rate to nano- and subnanoparticles embedded in materials by observing the annihilation time evolution of the momentum distribution of affinity-trapp…