Yu-Shiba-Rusinov bound states studied by tuning the electron density at the Fermi energy
SCIE
SCOPUS
- Title
- Yu-Shiba-Rusinov bound states studied by tuning the electron density at the Fermi energy
- Authors
- Song, Sang Yong; Park, Yun Sung; Jeong, Yongchan; Kim, Min-Seok; Kim, Ki-Seok; Seo, Jungpil
- Date Issued
- 2021-06
- Publisher
- AMER PHYSICAL SOC
- Abstract
- We studied the nature of Yu-Shiba-Rusinov (YSR) bound states in response to the potential scattering U by tuning the electron density at the Fermi energy. By comparing two systems, Mn-phthalocyanine molecules on Pb(111) and Co atoms on PbSe/Pb(111), we demonstrate that the sign of U can be unambiguously determined by varying the electron density at the Fermi energy. We further show that U competes with the exchange interaction JS in the formation of YSR bound states. Our work provides insights into the interactions between magnetic atoms and superconductors at a fundamental level.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/113085
- DOI
- 10.1103/PhysRevB.103.214509
- ISSN
- 2469-9950
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 103, no. 21, 2021-06
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