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突破!经典半导体变身超导体
半导体行业观察· 2025-12-28 02:49
Core Viewpoint - Germanium, a semiconductor previously thought to be fully understood, has shown potential to transform into a superconducting material when combined with suitable metals, bridging the gap between classical electronics and next-generation quantum devices [1]. Group 1: Research Findings - A recent study published in *Nature Nanotechnology* details how researchers successfully converted germanium into a zero-resistance conductive material, positioning it as a crucial link between quantum and classical technologies [1]. - The research involved heavily doping germanium with gallium, replacing 17.9% of germanium atoms, which typically would compromise material structure. However, the team employed an epitaxy technique to maintain perfect lattice stability [2]. - The stable crystal exhibited superconductivity at just 3.5 Kelvin (-269.65°C), a temperature suitable for current advanced quantum systems [2]. Group 2: Potential Applications - The new materials are expected to lead to the development of next-generation quantum circuits, sensors, and high-efficiency low-temperature electronic devices, all requiring clean interfaces between superconducting and semiconductor regions [3]. - A promising application is the Josephson junction, a core component of superconducting qubits, which can be constructed using germanium in both its superconducting and standard semiconductor forms [3]. Group 3: Industrial Implications - If the technology matures, engineers could manufacture millions of Josephson junctions on a single wafer, a critical step towards the industrial-scale production of quantum processors [5]. - For the first time, a single element may connect the established classical computing infrastructure with transformative quantum technology [5].