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Academic Journals
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From:Progress In Electromagnetics Research M (Vol. 100) Peer-ReviewedIn this study, 1D Photonic Crystal (PhC) with Nematic Liquid Crystal (N-LC) central microcavity is analyzed and discussed using Rigorous Coupled Wave Analysis (RCWA) method. A microcavity is inserted into the 1D PhC by...
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From:Nature (Vol. 464, Issue 7290) Peer-ReviewedIn conventional metals, there is plenty of space for dislocations--line defects whose motion results in permanent material deformation--to multiply, so that the metal strengths are controlled by dislocation interactions...
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From:Science (Vol. 267, Issue 5201) Peer-ReviewedNear-atomic resolution images of a two-dimensional heteroepitaxial crystal composed of the relatively "functionally rich" chiral liquid crystal mesogen MDW 74 on graphite have been obtained by scanning tunneling...
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From:Science (Vol. 270, Issue 5237) Peer-ReviewedThe rapid electrooptic response of ferroelectric liquid crystals--stratified smectic) melts exhibiting spontaneous electric polarization--makes them candidates for the next generation of electrooptic shufters and liquid...
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From:Science (Vol. 305, Issue 5692) Peer-ReviewedThe dominant mechanism for creating large irreversible strain in atomic crystals is the motion of dislocations, a class of line defects in the crystalline lattice. Here we show that the motion of dislocations can also...
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From:Advanced Coatings & Surface Technology (Vol. 15, Issue 8) Peer-ReviewedFerroelectric thin films are attractive materials for application to dynamic random access memory (DRAM) and nonvolatile memory devices. Polycrystalline bismuth titanate ([Bi.sub.4][Ti.sub.3][O.sub.12]), better known...
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From:Advanced Materials & Processes (Vol. 157, Issue 1) Peer-ReviewedThe ordered symmetrical crystal structure in a semiconducting material has been switched to a disordered liquid state and back again, report scientists at the University of San Diego, Calif. This result is produced by...
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From:Construction and Building Materials (Vol. 23, Issue 7) Peer-ReviewedABSTRACT This work focuses on the feasibility of reusing and valorising rubber aggregates from shredded worn tyres in cement composites. Our purpose is to study the influence of both microstructures of matrix and of...
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From:Nature (Vol. 463, Issue 7282) Peer-ReviewedFerroelectrics are electro-active materials that can store and switch their polarity (ferroelectricity), sense temperature changes (pyroelectricity), interchange electric and mechanical functions (piezoelectricity), and...
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From:Journal of Research of the National Institute of Standards and Technology (Vol. 107, Issue 5) Peer-ReviewedNIST has demonstrated that the high doses of radiation used on postal mail to kill anthrax (and other pathogens) does not interfere with standard DNA profiling tests that might be used to gather forensic evidence from...
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From:Science (Vol. 270, Issue 5234) Peer-ReviewedFerroelectric liquid crystals, liquids with polar super-molecular structures, are being developed for integrated optical chips. These organic films perform switching much faster than nematic liquid crystals or silicon...
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From:Science (Vol. 288, Issue 5474) Peer-ReviewedWe report the discovery of an orientational transition of bent-core molecules in a background anisotropic medium, in this case a smectic liquid crystal made of rod-like molecules. The resulting director is apolar in...
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From:Journal of Research of the National Institute of Standards and Technology (Vol. 109, Issue 6) Peer-ReviewedA lattice metric singularity occurs when unit cells defining two (or more) lattices yield the identical set of unique calculated d-spacings. The existence of such singularities, therefore, has a practical and...
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From:Journal of the Alabama Academy of Science (Vol. 74, Issue 2) Peer-ReviewedTriglycine sulfate (TGS), and L-arginine phosphate (LAP) and Potassium dihydrogen phosphate (KDP) crystals have technological importance in infrared detecting and nonlinear optical devices respectively. However, their...
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From:Science (Vol. 302, Issue 5649) Peer-ReviewedRecent advances in semiconductor growth and processing techniques are providing unprecedented possibilities for creating artificial crystal structures with new properties. Scientists are exploiting this ability to...
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From:The Mineralogical Record (Vol. 31, Issue 4) Peer-Reviewed[Cu.sub.4][A1.sub.3][(OH).sub.14][F.sub.3]*2[H.sub.2]O Locality: The Khaidarkan antimony-mercury deposit near Khaidarkan, northern slope of the Alai Range, Fergana Valley, Kyrgyzstan. Occurrence: Associated...
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From:Science (Vol. 252, Issue 5006) Peer-ReviewedThe diversity of physics was much in evidence when 1500 physicists assembled in Washington, D.C., last week for the spring meeting of the American Physical Society (APS). But so was the emergence of unexpected...
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From:Science (Vol. 260, Issue 5111) Peer-ReviewedThe theoretical basis for producing crystal-like structures in atomic gases was developed in the 1970s. A review of experiments conducted with light-bound atomic gas crystals is presented, with a particular emphasis on...
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From:Science (Vol. 256, Issue 5056) Peer-ReviewedWhat do we mean by soft matter? Americans prefer the term "complex fluids," and this does indeed bring in two of the major features: 1) Complexity. One may, in a certain primitive sense, say that modern biology has...
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From:Science (Vol. 241, Issue 4872) Peer-ReviewedThe Structure and Symmetry of Crystalline Solid Solutions: A General Revision MIXED CRYSTALS COMPOSED OF host and guest molecules of similar molecular structures and shapes have been generally observed to exhibit the...