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Jeong, Hu Young
UNIST Central Research Facilities (UCRF)
Research Interests
  • Soft material characterization such as graphene using a low kV Cs-corrected TEM
  • Insitu-TEM characterization of carbon-based materials using nanofactory STM holder for Li-ion battery application
  • Structural characterization of mesoporous materials using SEM & TEM
  • Interface analysis between various oxides and metals through Cs-corrected (S)TEM
  • Resistive switching mechanism of graphene oxide thin films for RRAM application

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Propagation Control of Octahedral Tilt in SrRuO(3)via Artificial Heterostructuring

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dc.contributor.author Jeong, Seung Gyo ko
dc.contributor.author Han, Gyeongtak ko
dc.contributor.author Song, Sehwan ko
dc.contributor.author Min, Taewon ko
dc.contributor.author Mohamed, Ahmed Yousef ko
dc.contributor.author Park, Sungkyun ko
dc.contributor.author Lee, Jaekwang ko
dc.contributor.author Jeong, Hu Young ko
dc.contributor.author Kim, Young-Min ko
dc.contributor.author Cho, Deok-Yong ko
dc.contributor.author Choi, Woo Seok ko
dc.date.available 2020-07-24T02:33:38Z -
dc.date.created 2020-07-16 ko
dc.date.issued 2020-06 ko
dc.identifier.citation ADVANCED SCIENCE, pp.2001643 ko
dc.identifier.issn 2198-3844 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/36790 -
dc.description.abstract Bonding geometry engineering of metal-oxygen octahedra is a facile way of tailoring various functional properties of transition metal oxides. Several approaches, including epitaxial strain, thickness, and stoichiometry control, have been proposed to efficiently tune the rotation and tilt of the octahedra, but these approaches are inevitably accompanied by unnecessary structural modifications such as changes in thin-film lattice parameters. In this study, a method to selectively engineer the octahedral bonding geometries is proposed, while maintaining other parameters that might implicitly influence the functional properties. A concept of octahedral tilt propagation engineering is developed using atomically designed SrRuO3/SrTiO3(SRO/STO) superlattices. In particular, the propagation of RuO(6)octahedral tilt within the SRO layers having identical thicknesses is systematically controlled by varying the thickness of adjacent STO layers. This leads to a substantial modification in the electromagnetic properties of the SRO layer, significantly enhancing the magnetic moment of Ru. This approach provides a method to selectively manipulate the bonding geometry of strongly correlated oxides, thereby enabling a better understanding and greater controllability of their functional properties. ko
dc.language 영어 ko
dc.publisher WILEY ko
dc.title Propagation Control of Octahedral Tilt in SrRuO(3)via Artificial Heterostructuring ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85087181397 ko
dc.identifier.wosid 000542803200001 ko
dc.type.rims ART ko
dc.identifier.doi 10.1002/advs.202001643 ko
dc.identifier.url https://onlinelibrary.wiley.com/doi/full/10.1002/advs.202001643 ko
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