Prospects and Problems in Fabrication of MgB_2 Josephson Junctions(Junction, <Special Section>Superconducting Electronic Devices and Their Applications)

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概要

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• We briefly survey recent developments in the thin film synthesis and junction fabrication of MgB_2 toward superconducting electronics. The most serious problem in the thin film synthesis of MgB_2 is the high vapor pressure required for phase stability. This problem makes insitu film growth difficult. However, there has been substantial progress in thin film technology for MgB_2 in the past three years. The low-temperature thin-film process in a UHV chamber can produce high-quality MgB_2 films with T_c ∿ 35 K. Furthermore, technology to produce single-crystal epitaxial MgB_2 films has recently been developed by using hybrid physical-chemical vapor deposition. With regard to Josephson junctions, various types of junctions have been fabricated, all of which indicate that MgB_2 has potential for superconducting devices that operate at 20-30 K, the temperature reached by current commercial cryocoolers.

• 社団法人電子情報通信学会の論文
• 2005-02-01

著者

• Naito Michio

  The Author Is With Tokyo University Of Agriculture And Technology

• UEDA Kenji

  The author is with NTT

関連論文

• Prospects and Problems in Fabrication of MgB_2 Josephson Junctions(Junction, Superconducting Electronic Devices and Their Applications)

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