Fabrication of superconducting d-wave dot embedded in an s-wave matrix

Masaki Fujii, Taiji Abe, Hirokazu Yoshikawa, Shigehito Miki, Shuichi Kawamata, Kazuo Satoh, Tsutomu Yotsuya, Masaru Kato, Masahiko Machida, Tomio Koyama, Takahito Terashima, Shigeki Tsukui, Motoaki Adachi, Takekazu Ishida

研究成果: Conference article査読

6 被引用数 (Scopus)


When a d-wave superconducting dot (d-dot) is embedded in an s-wave superconductor matrix, a half flux quantum vortex is expected to appear spontaneously at four corners of the d-dot without applying an external magnetic field. First, we have prepared c-axis oriented YBa 2Cu 3O 7 (d-wave superconductor) thin films by pulsed-laser ablation deposition on c-axis oriented SrTiO 3 single-crystal substrates. We have fabricated resist-coated YBa 2Cu 3O 7 square islands by using an electron beam lithography and an electron cyclotron resonance etching. Then, we have deposited Pb (s-wave superconductor) film on the fabricated YBa 2Cu 3O 7 thin film, and removed extra Pb and resist films on the YBa 2Cu 3O 7 islands by a lift-off technique. Magnetic field distribution on superconducting d-dot has been measured by using a SQUID microscope in zero fields.

ジャーナルPhysica C: Superconductivity and its applications
出版ステータスPublished - 2005 10月 1
イベントProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
継続期間: 2004 11月 232004 11月 25

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学


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