Browsing by Subject "Crystals"
Now showing items 1-8 of 8
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Article
Crystal/glass phase change in KSb5S8 studied through thermal analysis techniques
(2004)The reversible crystal-glass and glass-crystal transitions discovered in KSb5S8 were studied in detail with nonisothermal scanning calorimetry techniques. When cooled, molten KSb5S8 becomes a metastable glass, which can ...
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Conference Object
Direct observation of microscopic inhomogeneities in high-Tc superconductors using energy-dispersive diffraction of synchrotron-produced xrays
(Affiliation: Naval Research Lab., Washington, DC,, USA, United StatesCorrespondence Address: Skelton, Earl F.Naval Research Lab., Washington, DC,, USAUnited States, 1995)Evidence of micron-sized structural inhomogeneities in several high transition temperature (T c) superconductors is presented. By illuminating samples with high energy, highly collimated x rays produced on a synchrotron ...
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Article
Disorder-induced vortex phase transition in untwinned YBa2Cu3O7-δ crystal
(2000)Local magnetic measurements in an untwinned YBa2Cu3O7-δ crystal as a function of temperature, field and time reveal anomalies occurring along the same line BSS(T) in the field-temperature plane. We identify BSS(T) as a ...
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Article
Hall effect in an untwinned single crystal of YBa2Cu3O7-x
(1991)The Hall coefficient RH for untwinned single-crystal YBa2Cu3O7-x has been measured for the first time. The crystal was produced by a technique not requiring the application of stress. The measurements are made above the ...
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Article
Normal and defective perylene substitution sites in alkane crystals
(2001)The substitution nature of perylene in polycrystalline solid alkane matrices was examined. Low temperature excitation-emission matrix spectroscopy was used to determine substitution sites in alkane matrices from hexane to ...
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Article
Perchlorophenalenyl radical
(2001)We report the preparation and solid-state characterization of the perchlorophenalenyl radical (1). The radical is initially obtained as a yellow-green solid by reduction of the perchlorophenalenium salt (12+). This solid ...
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Article
Thin liquid crystal film for corrosion sensing
(2008)The anchoring energy of Liquid Crystals (LCs) is influenced by several parameters. Many scientists have exploited LCs anchoring in order to develop several LC based optical sensors. This paper proposes and proves a new ...