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Jang, Ji-Hyun
Nano Crystal Lab (NCL)
Research Interests
  • Graphene, photoelectrochemical (PEC) H2 generation, ORR/OER, SERS,3D-Nanostructures, supercapacitors, thermoelectric materials

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Direct observation of a hypersonic band gap in two-dimensional single crystalline phononic structures

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dc.contributor.author Gorishnyy, Taras ko
dc.contributor.author Jang, Ji-Hyun ko
dc.contributor.author Koh, CheongYang ko
dc.contributor.author Thomas, Edwin L ko
dc.date.available 2014-10-02T00:24:41Z -
dc.date.created 2014-09-30 ko
dc.date.issued 2007-09 -
dc.identifier.citation APPLIED PHYSICS LETTERS, v.91, no.12, pp.1 - 3 ko
dc.identifier.issn 0003-6951 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/6744 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34648819030 ko
dc.description.abstract Brillouin light scattering is employed to record the phonon dispersion relation of two-dimensional (2D) hypersonic phononic crystals with square lattice plane group p4mm symmetry. The samples are single crystalline arrays of cylindrical holes with a lattice constant of 750 nm and 35% porosity patterned in epoxy using interference lithography. The dispersion relation reveals the presence of a phononic band gap between 1.21 and 1.57 GHz at the edge of the first Brillouin zone for elastic waves propagating along the [10] direction and conclusively demonstrates a band gap in a single crystalline 2D polymer based phononic structure at hypersonic frequencies. ko
dc.description.statementofresponsibility open -
dc.language ENG ko
dc.publisher AMER INST PHYSICS ko
dc.subject ACOUSTIC PHONONS ko
dc.title Direct observation of a hypersonic band gap in two-dimensional single crystalline phononic structures ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-34648819030 ko
dc.identifier.wosid 000249667200040 ko
dc.type.rims ART ko
dc.description.wostc 31 *
dc.description.scopustc 28 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-09-30 *
dc.identifier.doi 10.1063/1.2786605 ko
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