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<p>Signal transmission across cryogenic and room-temperature environments remains a significant bottleneck in superconducting quantum computing and classical circuit integration. Furthermore, interactions among cryogenic devices often require room-temperature interfacing, driving substantial demand for data read/write interfaces, which in turn increases interconnect complexity and constrains scalability. In&#xa0;situ fabrication of cryogenic, high-performance logic circuits and devices presents a promising solution to address this “wiring bottleneck”. Here, we demonstrated interfacial two-dimensional electron gas devices with reversible interface states that can be directly modulated at operating temperatures while achieving an unprecedented ultrahigh on/off ratio. Remarkably, these devices can be patterned using a “light pencil” and erased with a pulsed electric field, enabling resist free, in situ direct writing and electrical erasure of the interface state.</p>

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Cryogenic in situ fabrication of reversible direct write logic circuits and devices

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月29日

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  • Yuhao Hong,
  • Lei Wang,
  • Ziyue Shen,
  • Tongrui Li,
  • Long Wei,
  • Shilin Hu,
  • Junhua Liu,
  • Wen Xiao,
  • Lin Li,
  • Mark Huijben,
  • Kai Chen,
  • Yulin Gan,
  • Guus Rijnders,
  • Gertjan Koster,
  • Zhaoliang Liao

摘要

Signal transmission across cryogenic and room-temperature environments remains a significant bottleneck in superconducting quantum computing and classical circuit integration. Furthermore, interactions among cryogenic devices often require room-temperature interfacing, driving substantial demand for data read/write interfaces, which in turn increases interconnect complexity and constrains scalability. In situ fabrication of cryogenic, high-performance logic circuits and devices presents a promising solution to address this “wiring bottleneck”. Here, we demonstrated interfacial two-dimensional electron gas devices with reversible interface states that can be directly modulated at operating temperatures while achieving an unprecedented ultrahigh on/off ratio. Remarkably, these devices can be patterned using a “light pencil” and erased with a pulsed electric field, enabling resist free, in situ direct writing and electrical erasure of the interface state.