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Conference Paper
Interface Engineering of the Superconducting Proximity Effect in High-Tc YBCO/Bi2Se3 Junctions
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- Authors
- MAENG Jin Young, LEE Suji, LEE Woo-Jung, CHUNG Yong-Duck, CHO Dae-Hyung, HWANG Tae-ha, LEE Dongho, SONG Jong Hyun
- Issue Date
- 2026-04
- Citation
- 한국물리학회 학술 논문 발표회 (봄) 2026, pp.1-1
- Publisher
- 한국물리학회
- Language
- English
- Type
- Conference Paper
- Abstract
- Heterostructures of superconductors and topological insulators (TI) have attracted continuous attention due to the proximity effect, which can induce exotic quantum states such as Majorana fermions. While early studies predominantly focused on junctions based on low-temperature superconductors, subsequent research has also explored high-temperature superconductors like BSCCO, which offer favorable surface roughness. In this study, we investigate the properties of TI/superconductor heterostructures using YBa2Cu3O7-δ (YBCO) thin films. We systematically varied the surface states of the YBCO films prior to the deposition of the topological insulator Bi2Se3(BS). By conducting transport measurements and comparing the physical characteristics across junctions with different surface conditions, we aim to elucidate the role of interface quality on the superconducting proximity effect.
- Keyword
- Heterostructure, Superconductor, Topological insulator, Proximity effect, YBa2Cu3O7-δ
- KSP Keywords
- High-Tc, Low-temperature superconductors, Majorana fermions, Physical characteristics, Quantum states, Surface conditions, Surface roughness, Transport measurement, YBCO film, high temperature superconductor(HTS), interface engineering