Search Results - "Park, Yun Daniel"
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Towards More Accurate Determination of the Thermoelectric Properties of Bi2Se3 Epifilms by Suspension via Nanomachining Techniques
Published in Sensors (Basel, Switzerland) (21-10-2022)“…We report on the characterization of the thermoelectric properties of Bi2Se3 epifilms. MBE-grown Bi2Se3 films on GaAs (111) A are nanomachined with integrated…”
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Methane as an effective hydrogen source for single-layer graphene synthesis on Cu foil by plasma enhanced chemical vapor deposition
Published in Nanoscale (01-01-2013)“…A single-layer graphene is synthesized on Cu foil in the absence of H(2) flow by plasma enhanced chemical vapor deposition (PECVD). In lieu of an explicit H(2)…”
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Contribution of both bulk and surface states on photothermoelectric transport in epitaxial Bi2Se3 thin films
Published in AIP advances (01-05-2022)“…Probing the surface states in Bi2Se3 via electronic transport measurements is difficult due to the significantly larger numbers of bulk carriers. Herein, we…”
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Transferring MBE-Grown Topological Insulator Films to Arbitrary Substrates and Metal–Insulator Transition via Dirac Gap
Published in Nano letters (12-03-2014)“…Mechanical exfoliation of bulk crystals has been widely used to obtain thin topological insulator (TI) flakes for device fabrication. However, such a process…”
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Nonlinear flexural response of a suspended Au nanobeam structure undergoing an electromigration-lead breakdown
Published in AIP advances (01-09-2020)“…The nonlinear resonance response of electromechanical structures, such as Duffing resonators, can discern both geometrical and internal anomalies, such as the…”
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Resistance switching in epitaxial SrCoOx thin films
Published in Applied physics letters (11-08-2014)“…We observed bipolar switching behavior from an epitaxial strontium cobaltite film grown on a SrTiO3 (001) substrate. The crystal structure of strontium…”
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Bright visible light emission from graphene
Published in Nature nanotechnology (15-06-2015)Get full text
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Ultra-Narrow Metallic Nano-Trenches Realized by Wet Etching and Critical Point Drying
Published in Nanomaterials (Basel, Switzerland) (19-03-2021)“…A metallic nano-trench is a unique optical structure capable of ultrasensitive detection of molecules, active modulation as well as potential electrochemical…”
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Universality of periodicity as revealed from interlayer-mediated cracks
Published in Scientific reports (02-03-2017)“…A crack and its propagation is a challenging multiscale materials phenomenon of broad interest, from nanoscience to exogeology. Particularly in fracture…”
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Investigation of Interface Formed between Top Electrodes and Epitaxial NiO Films for Bipolar Resistance Switching
Published in Japanese Journal of Applied Physics (01-03-2010)“…We investigated the resistance switching (RS) phenomenon in epitaxial NiO (epi-NiO) films by employing different types of top electrodes (TEs). Epi-NiO showed…”
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Scalable Assembly Method of Vertically-Suspended and Stretched Carbon Nanotube Network Devices for Nanoscale Electro-Mechanical Sensing Components
Published in Nano letters (01-12-2008)“…For the first time, vertically suspended and stretched carbon nanotube network junctions were fabricated in large quantity via the directed assembly strategy…”
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Carbon nanotube–metal nano-laminate for enhanced mechanical strength and electrical conductivity
Published in Carbon (New York) (01-06-2011)“…There have been extensive efforts to improve the properties of conventional metals such as electrical conductivity and rigidity. Here, we report a massive…”
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Free-Standing GaMnAs Nanomachined Sheets for van der Pauw Magnetotransport Measurements
Published in Micromachines (Basel) (09-12-2016)“…We report on the realization of free-standing GaMnAs epilayer sheets using nanomachining techniques. By optimizing the growth conditions of the sacrificial Al…”
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Electrical Field Gradient Pumping of Parametric Oscillation in a High-Frequency Nanoelectromechanical Resonator
Published in Japanese Journal of Applied Physics (01-07-2012)Get full text
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Micromechanical resonators fabricated from lattice-matched and etch-selective GaAs∕InGaP∕GaAs heterostructures
Published in Applied physics letters (24-09-2007)“…Utilizing lattice-matched GaAs∕InGaP∕GaAs heterostructures, clean micromechanical resonators are fabricated and characterized. The nearly perfect selectivity…”
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Effects of tensile stress on the resonant response of Al thin-film and Al-CNT nanolaminate nanomechanical beam resonators
Published in Current applied physics (01-05-2011)“…We report on the dependence of resonant response to applied tensile stress in Al and Al-CNT (carbon nanotube) nanolaminate thin-film nanomechanical beam…”
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Towards More Accurate Determination of the Thermoelectric Properties of Bi[sub.2]Se[sub.3] Epifilms by Suspension via Nanomachining Techniques
Published in Sensors (Basel, Switzerland) (01-10-2022)“…We report on the characterization of the thermoelectric properties of Bi[sub.2]Se[sub.3] epifilms. MBE-grown Bi[sub.2]Se[sub.3] films on GaAs (111) A are…”
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Geometrical considerations to discern the transverse spin Nernst effect in an all-metallic permalloy/platinum bilayer system
Published in Applied physics letters (31-05-2021)“…Most spin caloritronics research utilizes thin films on substrates with an in-plane heat flow, where an unintended out-of-plane thermal gradient may develop by…”
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Enhanced accuracy in a silicon-nitride-membrane-based microcalorimeter with variation of lateral layout
Published in Thermochimica acta (01-06-2009)“…We report the effect of lateral designs and resultant parasitic thermal conductance on the absolute accuracy of microcalorimeters based on a silicon-nitride…”
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Bright visible light emission from graphene
Published in Nature nanotechnology (01-08-2015)“…Electrically biased suspended graphene devices show an intense electroluminescence in the visible range with a tunable emission spectrum. Graphene and related…”
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