希伯来大学研究人员在二硒化铌和二硫化钽两种超导体中发现了一个现象。1这两种材料内部各自包含两个强相互作用的超导态,它们紧密配合而表现得像单一超导态。1这一发现解开了多年悬而未决的谜团,揭示了超导材料的内在复杂性远超既往认识。1
由希伯来大学Racah物理研究所PhD学生Shahar Simon和硕士生Maya Klang在Oded Millo教授和Hadar Steinberg教授指导下完成的研究,采用高灵敏度隧道分光法进行了精密测量。1研究人员建立了包含两个不同超导序参量的模型,该模型能够更准确地解释实验测量结果。1研究团队还发现,厚形式的二硒化铌可能含有三个相互作用的超导序参量。1这项研究已发表在《物理评论快报》2026年第137卷第1期,对量子计算和超高效电子设备的开发具有重要指导意义。1
Researchers at the Hebrew University have identified a previously unknown structural complexity in certain superconducting materials. The team found that niobium diselenide (NbSe2) and tantalum disulfide (TaS2) each contain two strongly interacting superconducting states that work in concert, presenting themselves as a single unified superconducting state.1 This discovery resolves a long-standing mystery about the behavior of these materials and suggests that superconductors are considerably more intricate than previously understood.
The research, conducted by PhD student Shahar Simon and master's student Maya Klang under the supervision of Professor Oded Millo and Professor Hadar Steinberg at the Racah Institute of Physics, employed high-sensitivity tunneling spectroscopy to make their measurements.1 The team developed a model incorporating two distinct superconducting order parameters, which successfully explained their experimental observations with greater accuracy than previous theoretical frameworks.1 Additionally, the researchers found that the bulk form of niobium diselenide may harbor three interacting superconducting order parameters.1 The findings, published in Physical Review Letters in 2026, volume 137, issue 1, carry significant implications for the development of quantum computing and ultra-efficient electronic devices.1
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