https://flatland-pi.vercel.app/materials/ptbi2.html The newest items tagged PtBi₂ in the Flatland news feed. en Mon, 05 Oct 2026 08:10:53 GMT https://doi.org/10.1021/acs.nanolett.6c04069 https://doi.org/10.1021/acs.nanolett.6c04069 Tue, 29 Sep 2026 11:02:09 GMT Nano Letters: The orbital Hall conductivity (OHC) is central to orbitronics, yet its microscopic control remains largely unexplored. Here we identify a general mechanism in which tilted Weyl crossings formed by orbitally distinct bands generate a strongly asymmetric orbital Berry curvature (OBC) distribution, whose imbalance… Theory PtBi₂ https://arxiv.org/abs/2609.03867v1 https://arxiv.org/abs/2609.03867v1 Thu, 03 Sep 2026 13:56:13 GMT arXiv: Recent experiments indicate that PtBi₂ is a Weyl semimetal whose surfaces become topological superconductors with i-wave gap symmetry at low temperature. The bulk hosts 12 Weyl cones while in the superconducting state each of the two surfaces hosts in addition 6 Majorana cones. We study a simplified model in a slab… Theory PtBi₂ https://arxiv.org/abs/2606.14378v1 https://arxiv.org/abs/2606.14378v1 Fri, 12 Jun 2026 12:12:02 GMT arXiv: Achieving nonvolatile and multistate manipulation of charge-spin conversion, including the Edelstein effect (EE) and spin Hall effect (SHE), is crucial for high-density spintronic memory. Here, we propose a mechanism to simultaneously control both EE and SHE in two-dimensional ferroelectric bilayers, where… Theory PtBi₂ https://arxiv.org/abs/2606.02371v1 https://arxiv.org/abs/2606.02371v1 Mon, 01 Jun 2026 15:18:19 GMT arXiv: According to recent observations, the topological surface states of Weyl semimetals may develop a superconducting gap, while bulk superconductivity remains absent. What drives the formation of this novel superconducting state is an open question. Here, we show that this phenomenon can arise from the interaction of… Experiment PtBi₂ https://arxiv.org/abs/2603.08851v1 https://arxiv.org/abs/2603.08851v1 Mon, 09 Mar 2026 19:11:08 GMT arXiv: Orbital Hall conductivity (OHC) is a central ingredient of orbitronics, yet how to control it microscopically remains largely unexplored. Here we identify a general mechanism in which tilted Weyl crossings formed by orbitally distinct bands generate a strongly asymmetric orbital Berry curvature (OBC) distribution… Theory PtBi₂ https://arxiv.org/abs/2511.15538v1 https://arxiv.org/abs/2511.15538v1 Wed, 19 Nov 2025 15:34:23 GMT arXiv: A bulk superconductor hosting intrinsic surface superconductivity provides a unique platform to study Majorana bound states. The superconductor, trigonal γ-PtBi2, is a promising candidate, as surface superconducting gaps and topological surface states have been observed. However, the simultaneous presence of bulk and… Experiment PtBi₂ https://arxiv.org/abs/2511.00920v2 https://arxiv.org/abs/2511.00920v2 Sun, 02 Nov 2025 12:44:41 GMT arXiv: We studied enhanced superconductivity in point contacts (PCs) based on a type-I Weyl semimetal trigonal t-PtBi2 using both normal metal (Ag, Cu, Pt) and ferromagnetic (Fe, Co, Ni) tips by measuring the differential resistance dV/dI(V) curves. In most cases, the value of the superconducting critical temperature Tc… Experiment PtBi₂ https://arxiv.org/abs/2505.10808v1 https://arxiv.org/abs/2505.10808v1 Fri, 16 May 2025 03:03:58 GMT arXiv: For the application of topological materials, the specific location of their topological surface states with respect to the Fermi level are important. γ-PtBi2 has been demonstrated to be a Weyl semimetal possessing superconducting Fermi arcs by photoemission spectroscopy. However, the evidence of its topological… Experiment PtBi₂