2015年11月9日 · In this work, we demonstrate very high in-plane upper critical fields induced by spin–momentum locking in superconducting monolayers of group-V TMD niobium diselenide (NbSe 2). This was achieved...

2022年10月13日 · In monolayer niobium diselenide (NbSe 2), the non-centrosymmetric crystalline structure together with the spin–orbit interaction locks the spin to the out-of-plane direction, resulting in Ising...

2021年4月15日 · Here we report a two-fold rotational symmetry of the superconducting state in few-layer NbSe 2 under in-plane external magnetic fields, in contrast to the three-fold symmetry of the lattice.

NbSe2材料减薄到单层极限时，可以获得二维Ising超导性，虽然面内上临界场显著提升，但超导转变温度却有所下降，仅有0.9-3.7K，也就是说单层NbSe2 Ising超导性的获得是以牺牲其他重要性质为代价的。

2020年10月5日 · Recent studies on superconductivity in NbSe 2 have demonstrated a large anisotropy in the superconducting critical field when the material is reduced to a single monolayer. Motivated by this recent discovery, we use density-functional theory (DFT) calculations to quantitatively address the superconducting properties of bulk and monolayer NbSe 2.

层状二维超导材料2H-NbSe 2用于构建范德华异质结构，其中可以在界面材料中感应出邻近耦合的超导顺序。 垂直堆叠的NbSe 2-石墨烯-NbSe 2是使用范德华层间耦合制造的，可产生无缺陷且具有高界面透明度的触点。 原子薄的石墨烯层允许在两个NbSe 2薄片之间形成高度相干的接近约瑟夫森耦合。 结临界电流的温度依赖性（I c）揭示了与理论预测相符的短而弹道的约瑟夫森耦合特征。 强大的约瑟夫森耦合可以通过1.6×10 4 A / cm 2的大结点临界电流密度，差分电导的亚隙结 …

Following graphene, transition metal dichalcogenides (TMDs) have taken the spotlight, as a treasure trove for a plethora of novel quantum phenomena. In recent years, a phenomenon called Ising superconductivity has been observed in materials such as NbSe2, driven primarily by spin-orbit coupling and the absence of inversion symmetry.

2022年8月2日 · Our results demonstrate a unique way to make an in-plane superconducting quantum interference device (SQUID) without delicate micro-fabrication. In addition, this device can survive under much higher magnetic field due to …

Using van der Waals tunnel junctions, we perform spectroscopy of superconducting NbSe2 flakes, of 2–25 monolayer thickness, measuring the quasiparticle density of states (DOS) as a function of applied in-plane magnetic field up to 33 T. In flakes 15 monolayers thick the DOS has a single superconducting gap.

2015年7月20日 · Enhanced electron–phonon interactions in mono- and few-layer NbSe2 result in a significantly increased transition temperature of charge density waves compared with values in the bulk.