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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


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

DC Field Value Language Jeong, Seung Gyo ko Han, Gyeongtak ko Song, Sehwan ko Min, Taewon ko Mohamed, Ahmed Yousef ko Park, Sungkyun ko Lee, Jaekwang ko Jeong, Hu Young ko Kim, Young-Min ko Cho, Deok-Yong ko Choi, Woo Seok ko 2020-07-24T02:33:38Z - 2020-07-16 ko 2020-06 ko
dc.identifier.citation ADVANCED SCIENCE, pp.2001643 ko
dc.identifier.issn 2198-3844 ko
dc.identifier.uri -
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 ko
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