Earticle

초록

영어

Rutile RuO2 thin films are known to exhibit strain-induced superconductivity, yet their relatively low critical temperature (~ 1–2 K) limits comprehensive study. Since superconductors in the 2D limit often behave distinctly from the bulk state, it might be important to characterize monolayer RuO2 for understanding dimensionality effects on the strain-induced superconductivity. In this report, we investigated the electronic band structure of the monolayer RuO2 by fabricating a charging-free RuO2-TiO2 heterostructure via pulsed laser deposition (PLD) and performing in-situ angle-resolved photoemission spectroscopy (ARPES). We successfully resolved the electronic band structure of atomically thin RuO2 films and observed a Fermi edge for the monolayer, providing direct spectroscopic evidence that monolayer RuO2 retains its metallicity under coherent epitaxial strain. Our findings provide an experimental basis for investigating superconductivity in the two-dimensional limit and offer a platform to examine strain effects in monolayer oxide systems.

목차

Abstract
1. INTRODUCTION
2. METHODS
3. RESULTS
4. CONCLUSION
ACKNOWLEDGMENT
REFERENCES

키워드

저자

• San Kang [ Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea ]
• Dong-Hyo Lee [ Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea ]
• Yeonjae Lee [ Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea ]
• Jaeung Lee [ Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea ]
• Changyoung Kim [ Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537