한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

금 나노입자가 배열된 STO기판에서 성장된 Y-Ba-Cu-O박막의 Flux pinning 특성

Flux pinning properties of Y-Ba-Cu-O thin films grown on STO substrates with assembled Au nanoparticles

  • Oh, Se-Kweon (Department of Advanced Materials Engineering, Chungbuk National University) ;
  • Jang, Gun-Eik (Department of Advanced Materials Engineering, Chungbuk National University) ;
  • Lee, Cho-Yeon (Korea Research Institute of Standards and Science) ;
  • Hyun, Ok-Bae (Korea Electric Power Research Institute)
  • 발행 : 2009.06.18
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

For many large-scale applications of high-temperature superconducting materials, large critical current density($J_c$) in high applied magnetic fields are required. A number of methods have been reported to introduce artificial pinning centers(APCs) in $YBa_2Cu_3O_{7-\delta}$(YBCO) films for enhancement of their $J_c$. We report measurements of critical current in $YBa_2Cu_3O_{7-\delta}$ films deposited by PLD on $SrTiO_3$ substrates decorated with Au nanoparticles. Au nanoparticles were synthesized on STO substrates with self assembled monolayer. Microstructural analysis of the obtained YBCO films was performed by using cross-section transmission electron microscopy(TEM). Phase and textural analysis was done using X-ray diffraction. The surface morphology and surface roughness(Ra) of the layers was measured by atomic force microscopy(AFM).

키워드