Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Yun Daniel Park"'
Publikováno v:
AIP Advances, Vol 12, Iss 5, Pp 055021-055021-6 (2022)
Probing the surface states in Bi2Se3 via electronic transport measurements is difficult due to the significantly larger numbers of bulk carriers. Herein, we report the contribution of both bulk and surface states on the measured photocurrent at room
Externí odkaz:
https://doaj.org/article/3eaef803bb764b95a1b49dc24d0ba503
Publikováno v:
Sensors, Vol 22, Iss 20, p 8042 (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 Pt elements serving as local joule heaters, thermometers, and voltage probes. We suspended
Externí odkaz:
https://doaj.org/article/ef9c756466014a37adcfff2f6ccf44ee
Publikováno v:
AIP Advances, Vol 10, Iss 9, Pp 095301-095301-5 (2020)
The nonlinear resonance response of electromechanical structures, such as Duffing resonators, can discern both geometrical and internal anomalies, such as the “softening” response attributed to deviations from an ideal parallel plane for the form
Externí odkaz:
https://doaj.org/article/c385f328178c4834ab44b18590bd42eb
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 783 (2021)
A metallic nano-trench is a unique optical structure capable of ultrasensitive detection of molecules, active modulation as well as potential electrochemical applications. Recently, wet-etching the dielectrics of metal–insulator–metal structures
Externí odkaz:
https://doaj.org/article/f940a44ff78142c9baa0fe742b5761bc
Autor:
Jae-Hyun Lee, Seondo Park, Chanuk Yang, Hyung Kook Choi, Myung Rae Cho, Sung Un Cho, Yun Daniel Park
Publikováno v:
Micromachines, Vol 7, Iss 12, p 223 (2016)
We report on the realization of free-standing GaMnAs epilayer sheets using nanomachining techniques. By optimizing the growth conditions of the sacrificial Al0.75Ga0.25As layer, free-standing metallic GaMnAs (with ~6% Mn) microsheets (with TC ~85 K)
Externí odkaz:
https://doaj.org/article/9f5a9a8e6023434d979cc9ba3f0a5aa5
Autor:
Seondo Park, Young Duck Kim, Myunglae Jo, Yun Daniel Park, Dong-Uk Kim, Hyung Kook Choi, Chanuk Yang, Jae-Hyun Lee, Sung Un Cho
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
Scientific Reports
Scientific Reports
Strain perturbs atomic ordering in solids, with far-reaching consequences from an increased carrier mobility to localization in Si, stabilization of electric dipoles and nanomechanical transistor action in oxides, to the manipulation of spins without
Publikováno v:
Nanomaterials
Nanomaterials, Vol 11, Iss 783, p 783 (2021)
Volume 11
Issue 3
Nanomaterials, Vol 11, Iss 783, p 783 (2021)
Volume 11
Issue 3
A metallic nano-trench is a unique optical structure capable of ultrasensitive detection of molecules, active modulation as well as potential electrochemical applications. Recently, wet-etching the dielectrics of metal–insulator–metal structures
Autor:
Seondo Park, Yun Daniel Park
Publikováno v:
Applied Physics Letters. 118:222403
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 heat dissipation through the substrate. In systems exploiting metallic ferromagnets to gen
Autor:
Sungwan Cho, Sang Goon Kim, Kimin Hong, Seung-Bo Shim, Myunglae Jo, Sung Un Cho, Yun Daniel Park
Publikováno v:
Journal of the Korean Physical Society. 71:684-691
In the present study, the acoustic field of a high intensity focused ultrasound (HIFU) transducer in water was measured by using a commercially available needle hydrophone intended for HIFU use. To validate the results of hydrophone measurements, num
Autor:
Sungwan Cho, Myunglae Jo, Seung-Bo Shim, Yun Daniel Park, Sung Un Cho, Kimin Hong, Sang Goon Kim
Publikováno v:
Journal of the Korean Physical Society. 71:733-739
Measurement of reflected optical light from the surface of microscopic structures can offer a precise tool to investigate the oscillatory motion of micro- and nano-mechanical resonators. We demonstrate an optical investigation of multiple flexural mo