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강상관계 물질 연구단
강상관계 물질 연구단
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Phase Instability amid Dimensional Crossover in Artificial Oxide Crystal

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Title
Phase Instability amid Dimensional Crossover in Artificial Oxide Crystal
Author(s)
Seung Gyo Jeong; Taewon Min; Sungmin Woo; Jiwoong Kim; Yu-Qiao Zhang; Seong Won Cho; Jaeseok Son; Young-Min Kim; Jung Hoon Han; Sungkyun Park; Hu Young Jeong; Hiromichi Ohta; Suyoun Lee; Tae Won Noh; Jaekwang Lee; Woo Seok Choi
Publication Date
2020-01
Journal
PHYSICAL REVIEW LETTERS, v.124, no.2, pp.026401 -
Publisher
AMER PHYSICAL SOC
Abstract
Artificial crystals synthesized by atomic-scale epitaxy provide the ability to control the dimensions of the quantum phases and associated phase transitions via precise thickness modulation. In particular, the reduction in dimensionality via quantized control of atomic layers is a powerful approach to revealing hidden electronic and magnetic phases. Here, we demonstrate a dimensionality-controlled and induced metal-insulator transition (MIT) in atomically designed superlattices by synthesizing a genuine two-dimensional (2D) SrRuO3 crystal with highly suppressed charge transfer. The tendency to ferromagnetically align the spins in an SrRuO3 layer diminishes in 2D as the interlayer exchange interaction vanishes, accompanying the 2D localization of electrons. Furthermore, electronic and magnetic instabilities in the two SrRuO3 unit cell layers induce a thermally driven MIT along with a metamagnetic transition. © 2020 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/7255
ISSN
0031-9007
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
71360_Phase Instability amid Dimensional Crossover in Artificial Oxide Crystal.pdfDownload

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