https://flatland-pi.vercel.app/materials/ta2nise5.html The newest items tagged Ta₂NiSe₅ in the Flatland news feed. en Mon, 05 Oct 2026 08:10:53 GMT https://arxiv.org/abs/2512.12439 https://arxiv.org/abs/2512.12439 Wed, 30 Sep 2026 04:00:00 GMT arXiv: Ta₂NiSe₅ continues to draw interest for its Tc = 326 K phase transition, whose dual electronic and structural nature reflects a complex interplay of electron-hole (excitonic) and electron-lattice interactions. The majority of studies that have attempted to decipher the relative importance of these interactions… Experiment Ta₂NiSe₅ https://www.nature.com/articles/s42005-026-02888-x https://www.nature.com/articles/s42005-026-02888-x Tue, 29 Sep 2026 00:00:00 GMT Nature: Two-dimensional materials Experiment Ta₂NiSe₅ https://arxiv.org/abs/2608.27064v1 https://arxiv.org/abs/2608.27064v1 Thu, 27 Aug 2026 12:51:13 GMT arXiv: Van der Waals (vdW) heterostructures offer a versatile platform for engineering unconventional bulk photovoltaic (BPV) effect through interfacial symmetry breaking. However, the coexistence of multiple photophysical mechanisms, driven by structural complexity, spontaneous charge transfer, and strong interlayer… Theory Ta₂NiSe₅ MoS₂ https://arxiv.org/abs/2608.23438v1 https://arxiv.org/abs/2608.23438v1 Mon, 24 Aug 2026 16:12:39 GMT arXiv: Ta2NiSe5 is a quasi-one-dimensional material that exhibits a structural and electronic phase transition from a low-temperature monoclinic (semiconductor) to a high-temperature orthorhombic (semimetal) phase at approximately TC = 326 K. Here, we used variable-temperature scanning tunneling microscopy and spectroscopy to… Experiment Ta₂NiSe₅ https://arxiv.org/abs/2608.23438v1 https://arxiv.org/abs/2608.23438v1 Mon, 24 Aug 2026 16:12:39 GMT arXiv: Ta2NiSe5 is a quasi-one-dimensional material that exhibits a structural and electronic phase transition from a low-temperature monoclinic (semiconductor) to a high-temperature orthorhombic (semimetal) phase at approximately TC = 326 K. Here, we used variable-temperature scanning tunneling microscopy and spectroscopy to… Experiment Ta₂NiSe₅ https://arxiv.org/abs/2512.03011v1 https://arxiv.org/abs/2512.03011v1 Tue, 02 Dec 2025 18:39:13 GMT arXiv: An excitonic insulator (EI) is a charge-neutral bosonic condensate of spontaneously formed electron-hole pairs. Exotic quantum phenomena such as dissipationless charge neutral transport and huge potential for optoelectronic applications have led to an extensive search for intrinsic bulk materials that are EIs at… Experiment Ta₂NiSe₅ https://arxiv.org/abs/2511.23084v2 https://arxiv.org/abs/2511.23084v2 Fri, 28 Nov 2025 11:15:02 GMT arXiv: Trions, three-body bound states composed of an exciton and an additional charge, are typically fragile and require external excitation to form. Here, we report the spontaneous emergence of a stable trion gas at the surface of the layered semiconductor Ta2NiS5, revealed through angle-resolved photoemission spectroscopy.… Theory Experiment Ta₂NiSe₅ https://arxiv.org/abs/2505.17324v2 https://arxiv.org/abs/2505.17324v2 Thu, 22 May 2025 22:26:16 GMT arXiv: We present a first-principles study based on density functional theory (DFT) on the electronic and structural properties of Ta2NiSe5, a layered transition metal chalcogenide that has been considered as a possible candidate for an excitonic insulator. Our systematic DFT results however provide a non-excitonic mechanism… Theory Ta₂NiSe₅