Category: 4. Physics

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  • Detecting existence of a hidden mediator between a pair of individual time series

    Detecting existence of a hidden mediator between a pair of individual time series

    Systems of many interacting agents–entities or individuals of a system that interact with each other under specific rules–exhibit complex behaviors that cannot be attributed to individuals alone. Such phenomena, termed “emergent…

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  • Unusual 5f magnetism in new kagome material UV6Sn6

    Unusual 5f magnetism in new kagome material UV6Sn6

    Crystal structure determination

    We examine the crystal structure of UV6Sn6 through laboratory single-crystal x-ray diffraction. Because most RV6Sn6 materials in this family are reported to crystallize in the hexagonal HfFe6Ge6-type structure, our…

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  • Effective electro-optical coefficient determination of low finesse periodically poled lithium niobate waveguide resonator

    Effective electro-optical coefficient determination of low finesse periodically poled lithium niobate waveguide resonator

    The polarization converter investigated in this study consists of a 15 mm long Ti:PPLN channel waveguide with 6 \(\upmu\)m width, designed for fundamental mode operation at 1550 nm. For efficient TE\(\leftrightarrow\)TM polarization conversion at…

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  • Purely electronic insulator-metal transition in rutile VO2

    Purely electronic insulator-metal transition in rutile VO2

    Basic structural characterizations and property measurement

    An ultrathin 8 nm VO2 film was epitaxially grown on a TiO2 substrate to maximize the effect on the interfacial coupling. A CdS layer was subsequently deposited (about 80 nm thick),…

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