2018年11月19日 · In this paper, we present first-principle DFT calculations of the electronic and lattice dynamics properties for the actual distorted monoclinic structure of NbTe 2. The electronic band structure...

2023年3月7日 · Layered transition-metal dichalcogenides down to the monolayer (ML) limit provide a fertile platform for exploring charge-density waves (CDWs). Here, we experimentally unveil the richness of the CDW phases in ML-NbTe 2 for the first time.

2024年10月2日 · We report a significant enhancement of superconducting transition temperature (Tc) of transition metal dichalcogenide (TMD) superconductor NbTe2 from 0.56 K to 2.8 K. Detailed x-ray structure analysis reveals that our Tc -enhanced sample has an anisotropic lattice distortion inducing ~1% expansion of the unit cell volume and multi-domain formati...

2024年4月3日 · We report the fast and scalable synthesis of a wide variety of MTe 2 (M = Nb, Mo, W, Ta, Ti) nanosheets by the solid lithiation of bulk MTe 2 within 10 min and their subsequent hydrolysis within...

2021年5月20日 · The structural, vibration, and electronic properties of transition metal dichalcogenides (TMDs) NbTe2 were studied up to 58.9 GPa. A pressure-induced phase transition from 1T″ to 1T′ structure was ...

NbTe2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one NbTe2 sheet oriented in the (2, 0, -1) direction. there are two inequivalent Nb4+ sites. In the first Nb4+ site, Nb4+ is bonded to six Te2- atoms to form distorted edge-sharing NbTe6 octahedra.

2024年8月21日 · Surprisingly, we reveal that both 1T/1H phases could exist in monolayer NbTe 2, which was incognizant before. Particularly, we find that the experimentally observed 4 × 1 and 4 × 4 CDWs could be attributed to 1H stacking, while the observed 19−−√ × 19−−√ 19 × 19 phase could possess 1T stacking.

In this paper, we present first-principle DFT calculations of the electronic and lattice dynamics properties for the actual distorted monoclinic structure of NbTe2. The electronic band structure...

2002年4月1日 · NbTe 2 belongs to the family of layered transition-metal dichalcogenides TCh 2 (T=transition metal, Ch=chalcogen:Te, Se, S), known for their quasi two-dimensional layered structure and unusual physical and electronic properties [1].

2024年6月22日 · By using spin-polarized scanning tunneling microscopy/spectroscopy, we reveal that the root19 * root19 phase of NbTe2 is encoded with both alternating-chiral atomic displacements and charge density waves, characterized by two chiral units of opposite handedness within the reconstructed cell.