• 제목/요약/키워드: Traped Magnetic Field.

검색결과 1건 처리시간 0.018초

성장온도를 변화시킨 $YBa_2Cu_3Ox$ 단결정의 자기적 특성 (Magnetic Characterization of $YBa_2Cu_3Ox$ Single Crystal with a Variation of Growth Temperature)

  • 한영희;성태현;한상철;이준성;김상준
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 1999년도 춘계학술대회 논문집
    • /
    • pp.251-254
    • /
    • 1999
  • A new multi-seeding process for the growth of YBa$_2$Cu$_3$Oxx single crystals was developed. This process introduces an additional heating step to peritectic temperature and a subsequent slow cooling step to the growth temperature following the point when the crystals contacted. The crystal growth was resumed thereafter. The results obtained with this new process were compared with those of the conventional growth process, in which materials were only kept at the growth temperature. It was observed that the liquid phase between crystals were almost completely eliminated, but that Y2ll grains were grown during this new process. There was no significant improvement in trapped magnetic field over the conventional process, which is believed to be due to the cracks generated during the oxygen heat treatment or to the growth of YBa$_2$Cu$_3$Ox grains.

  • PDF