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New laser properties and spectroscopy of orthorhombic crystals YAlO3:Er3+. Intensity luminescence characteristics, stimulated emission, and full set of squared reduced-matrix elements |〈α[SL]J| |U(t)||α′[S′ L′]J′〉|2 for Er3+ Ions

А. А. Каминский、Vladimir S. Mironov、А. А. Корниенко 等 7 位作者1995-09-16physica status solidi (a)

New laser data on orthorhombic YAlO3:Er3+ crystals are obtained. Stimulated emission in the 4S3/2 →5I15/2 channel and cascase lasing of the sequential intermanifold 4S3/2 → 4I11/2 → 4I13/2 transitions are excited at ≈︁ 110 K with Xe-flashlamp pumping. Intensity absorption and luminescence characteristics of Er3+ ions…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsSolid State Laser Technologies

Recovery of electric resistance degraded by electromigration

Shin‐ichi Ohfuji、Mitsuo Tsukada1995-09-15Journal of Applied Physics

Electric resistance degraded by electromigration at low temperatures is investigated by sweeping temperatures up to 400 K at a constant rate. Recovery (decrease) of the resistance is found and a first-order reaction model is applied to evaluate the activation energy spectra for this recovery. The energy spectra are fo…

Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability

Microdeformation in thin films of 3FDA/PMDA polyimide and polyimide nanofoams

C. J. G. Plummer、J. L. Hedrick、H. H. Kausch 等 4 位作者1995-09-15Journal of Polymer Science Part B Polymer Physics

Abstract Transmission electron microscopy has been used to investigate the microdeformation behavior of thermally imidized thermoplastic pyromellitic dianhydride/1,1‐bis(4‐amino‐phenyl)‐1‐phenyl‐2,2,2 trifluoroethylene (3FDA/PMDA) polyimide films with a T g of ∼ 440°C, prepared by solution casting of a polyamic ester…

Epoxy Resin Curing ProcessesSynthesis and properties of polymersTribology and Wear Analysis

Synthesis of reactive copolyesters derived from isophthaloyl chloride, bisphenol a, and aliphatic diols with additional reactive groups

Chonghui Wang、Shigeo Nakamura1995-09-15Journal of Polymer Science Part A Polymer Chemistry

Abstract Copolycondensation of isophthaloyl chloride, bisphenol A, and aliphatic diols with additional reactive groups were performed in the presence of triethylamine by a trimethyl phosphate/cyclohexane organic/organic interfacial method. The composition of idol and bisphenol A residues in the resulting copolyesters…

biodegradable polymer synthesis and propertiesChemical Synthesis and ReactionsSynthesis and properties of polymers

Possible stress-induced phase transition ino-TaS3

Kanta Das、Shen Shou Max Chung、M. J. Skove 等 4 位作者1995-09-15Physical review. B, Condensed matter

We have measured the stress-strain (\ensuremath{\sigma}-\ensuremath{\epsilon}) relations in o-${\mathrm{TaS}}_{3}$ below the charge-density-wave (CDW) transition temperature. We find a large peak in d\ensuremath{\epsilon}/d\ensuremath{\sigma} at a critical stress ${\mathrm{\ensuremath{\sigma}}}_{\mathit{c}}$\ensuremat…

Organic and Molecular Conductors ResearchN-Heterocyclic Carbenes in Organic and Inorganic ChemistryElectronic and Structural Properties of Oxides

<title>Diamond-turned diffractive optical elements for the infrared: suggestion for specification standardization and manufacturing remarks</title>

Max J. Riedl1995-09-15Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Diffractive optical elements (DOEs) have found their acceptance in lens design as an additional tool to refractive and reflective elements. They are especially powerful for applications in the infrared spectrum, because many of the materials, suitable for transmission in this region, lend themselves exceptionally well…

Advanced optical system designOptical Coatings and Gratings

High density polyethylene/hydrogenated oligo(cyclopentadiene) blends: Tensile stress‐strain behavior

Sossio Cimmino、Emilia Di Pace、E. Martuscelli 等 6 位作者1995-09-15Journal of Polymer Science Part B Polymer Physics

Abstract The influence of hydrogenated olio(cyclopentadiene) (HOCP) on tensile mechanical properties of its blends with high density polyethylene (HDPE) has been studied at 20, 80, and 100°C. The nominal stress‐strain curves performed at 20°C indicate an increase of the modulus and a conspicuous decrease of the ultima…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites

Some observations on element performance in isochoric and dilatant plastic flow

René de Borst、A.E. Groen1995-09-15International Journal for Numerical Methods in Engineering

Abstract The performance of finite elements is scrutinized in isochoric and dilatant/contractant plastic flow. Standard displacement based elements, uniformly and selectively integrated elements, and elements with augmented strain rate fields are considered in plane‐strain, axisymmetric and three‐dimensional configura…

Dynamics and Control of Mechanical SystemsHigh-Velocity Impact and Material BehaviorStructural Response to Dynamic Loads

Photoinduced localized magnetic polaron and luminescence in Eu chalcogenides, especially in EuTe

Masakatsu Umehara1995-09-15Physical review. B, Condensed matter

There has been a controversy over the photoexcited electron state in Eu chalcogenides. This paper examines whether the photoexcited electron in Eu chalcogenides, especially in EuTe, is the self-trapped magnetic polaron (STMP) or the photoinduced localized magnetic polaron (PILMP) bound by the 4f hole produced in the p…

Crystal Structures and PropertiesPhase-change materials and chalcogenidesSolid-state spectroscopy and crystallography

Dielectric tensor characterization and evaluation of several magneto-optical recording media

Hong Fu、Zheng Yan、Seh Kwang Lee 等 4 位作者1995-09-15Journal of Applied Physics

We attempt to establish a dielectric tensor database for magneto-optical (MO) thin film materials with potential application for blue recording. For this purpose a method is developed for measuring the dielectric tensor of the MO layer within a multilayered stack. It uses a combination of ellipsometric, reflection/tra…

Magnetic properties of thin filmsHeusler alloys: electronic and magnetic propertiesMagneto-Optical Properties and Applications

Molecular dynamics simulation of vapor deposited amorphous ice

Ulrich Essmann、Alfons Geiger1995-09-15The Journal of Chemical Physics

We report a molecular dynamics simulation of the vapor deposition of amorphous ice on a cold surface. We compare the obtained structure with neutron scattering data of high and low density amorphous ice formed by pressure induced transformation of crystalline ice. The structure of our vapor deposited ice is intermedia…

High-pressure geophysics and materialsMaterial Dynamics and Propertiesnanoparticles nucleation surface interactions

Quantum size effect and persistent hole burning of CuI nanocrystals

Yasuaki Masumoto、Kanae Kawabata、Tadashi Kawazoe1995-09-15Physical review. B, Condensed matter

A quantum size effect of nanometer-size CuI microcrystallites (nanocrystals) embedded in glass was investigated and was found to follow the strong-confinement model. Persistent spectral hole burning and thermally annealing hole filling phenomena were observed in samples (CuI nanocrystals in glass). Unusual luminescenc…

Quantum Dots Synthesis And PropertiesSilicon Nanostructures and PhotoluminescenceCopper-based nanomaterials and applications

Gain characteristics of a high concentration Er3+-doped phosphate glass waveguide

T. Ohtsuki、N. Peyghambarian、Seppo Honkanen 等 4 位作者1995-09-15Journal of Applied Physics

A channel waveguide on an erbium-doped phosphate laser glass was fabricated by a dry silver-film ion exchange technique, and its gain properties were studied experimentally. The propagation loss of the fabricated waveguide was 0.63 dB/cm at 1.3 μm. Er3+ concentration of 1×1020 ions/cm3 was chosen so that no concentrat…

Glass properties and applicationsPhotorefractive and Nonlinear OpticsSolid State Laser Technologies

Reflection high-energy electron diffraction and photoemission study of GaSb(100) reconstructions

M. T. Sieger、T. Miller、T.‐C. Chiang1995-09-15Physical review. B, Condensed matter

The clean GaSb(100) surface exhibits a variety of reconstructions, including a c(2\ifmmode\times\else\texttimes\fi{}10), a c(2\ifmmode\times\else\texttimes\fi{}6), and a (1\ifmmode\times\else\texttimes\fi{}3)/c(2\ifmmode\times\else\texttimes\fi{}6), in order of a decreasing surface Sb/Ga ratio. Core-level photoemissio…

Semiconductor materials and devicesElectron and X-Ray Spectroscopy TechniquesElectronic and Structural Properties of Oxides

The electromigration short-length effect in Ti-AlCu-Ti metallization with tungsten studs

R. G. Filippi、G. Biery、R. Wachnik1995-09-15Journal of Applied Physics

The electromigration short-length effect has been investigated by testing a two-level structure with Ti-AlCu-Ti stripes and interlevel tungsten (W) stud vias. This investigation represents a complete study of the short-length effect using a technologically realistic test structure. Lifetime measurements and resistance…

Semiconductor materials and devicesCopper Interconnects and ReliabilitySemiconductor materials and interfaces

Molecular-specific chromatographic detector using modified SERS substrates

Keith T. Carron、Brian Kennedy1995-09-15Analytical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular-specific chromatographic detector using modified SERS substratesKeith T. Carron and Brian J. KennedyCite this: Anal. Chem. 1995, 67, 18, 3353–3356Publication Date (Print):September 15, 1995Publication History Published online1 May 2002Published inissue 15 September…

Gold and Silver Nanoparticles Synthesis and ApplicationsSpectroscopy Techniques in Biomedical and Chemical ResearchBiosensors and Analytical Detection

Spatially resolved atomic hydrogen concentrations and molecular hydrogen temperature profiles in the chemical-vapor deposition of diamond

L. L. Connell、J. W. Fleming、H.-N. Chu 等 6 位作者1995-09-15Journal of Applied Physics

We report here a direct measurement of the spatially resolved atomic hydrogen concentration profiles during hot-filament-assisted chemical-vapor deposition (HFCVD) of diamond films. The ground-state hydrogen (1s 2S1/2) atoms generated in this process are monitored by an optical four-wave-mixing technique, third-harmon…

Diamond and Carbon-based Materials ResearchLaser-Matter Interactions and ApplicationsAdvanced Fiber Laser Technologies

Temperature Dependence of Conductivity in (La, Sr)MnO3

Nobuo Furukawa1995-09-15Journal of the Physical Society of Japan

Using the Kondo lattice model with classical spins in infinite dimension, conductivity in the perovskite-type $3d$ transition-metal oxide (La,Sr)MnO$_3$ is theoretically studied. Green's functions as well as spontaneous magnetization are obtained exactly on the Bethe lattice as a function of temperature. Conductivity…

Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsElectronic and Structural Properties of Oxides

Pulsed laser deposition of diamond-like amorphous carbon films from graphite and polycarbonate targets

Andrey A. Voevodin、S. J. P. Laube、Scott D. Walck 等 6 位作者1995-09-15Journal of Applied Physics

Amorphous carbon (a-C) and amorphous hydrogenated carbon (a-C:H) films are produced by 248 nm pulsed laser ablation of graphite and polycarbonate targets in high vacuum conditions. Plasma plumes generated by target irradiation with different laser fluences are investigated with laser induced fluorescence spectroscopy…

Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchIon-surface interactions and analysis

Kinetic and thermodynamic analysis of proteinlike heteropolymers: Monte Carlo histogram technique

Nicholas D. Socci、José Nelson Onuchic1995-09-15The Journal of Chemical Physics

Using Monte Carlo dynamics and the Monte Carlo histogram method, the simple three-dimensional 27 monomer lattice copolymer is examined in depth. The thermodynamic properties of various sequences are examined contrasting the behavior of good and poor folding sequences. The good (fast folding) sequences have sharp well-…

Material Dynamics and PropertiesBlock Copolymer Self-AssemblyAdvanced Physical and Chemical Molecular Interactions