1 citations · 1 across the 6 of their papers we have counts for
10 papers
Mapping Strain and Spatial-Modulation Phase from Local Wave Vectors in Scanning Tunneling Microscopy
Xinze Yang, Sandra Sajan, Maria N. Gastiasoro +2
Spatially varying lattice distortions can produce local changes in electronic properties that are obscured by measurements averaging over extended regions. With its atomic-scale sp…
Stacking-tuned superconductivity and competing charge-density-wave states in NbSe
Sandra Sajan, Xinze Yang, Haojie Guo +9
Layer stacking provides a powerful yet underexplored route for reshaping collective quantum order in van der Waals materials. Here we use high-resolution scanning tunneling microsc…
Moiré-induced symmetry breaking of charge order in van der Waals heterostructures
Sandra Sajan, Laura Pätzold, Tarushi Agarwal +10
Layered materials that stack different lattice symmetries are rare in nature. Misfit layered chalcogenides, which combine square and hexagonal lattices of rocksalt monochalcogenide…
Layer-selective Cooper pairing in an alternately stacked transition metal dichalcogenide
Haojie Guo, Sandra Sajan, Irián Sánchez-Ramírez +9
Multigap superconductivity emerges when superconducting gaps form on distinct Fermi surfaces. Arising from locally overlapping atomic orbitals, multiple superconducting bands intro…
Quantum Geometry in the NbSe Family I: Obstructed Compact Wannier Function and New Perturbation Theory
Jiabin Yu, Yi Jiang, Yuanfeng Xu +8
We revisit the electronic structure and band topology of monolayer 1H-NbSe, which hosts both superconductivity and charge density wave, and its related compounds 1H-MoS, Nb…
One-dimensional conduction channels in the correlated Mott NiS2 arising from obstructed Wannier charges
Mikel Iraola, Haojie Guo, Fabio Orlandi +9
NiS2, a compound characterized by its pyrite structure, uniquely bridges the realms of strong correlation physics and topology. While bulk NiS2 is known to be a Mott or charge-tran…
Probing the Quantized Berry Phases in 1H-NbSe Using Scanning Tunneling Microscopy
Dumitru Călugăru, Yi Jiang, Haojie Guo +7
Topologically trivial insulators are classified into two primary categories: unobstructed and obstructed atomic insulators. While both types can be described by exponentially local…
Layer thickness and substrate effects on superconductivity in epitaxial FeSe films on BLG/SiC(0001)
Yongsong Wang, Haojie Guo, Ane Etxebarria +3
The layered nature and simple structure of FeSe reveal this iron-based superconductor as a unique building block for the design of artificial heterostructure materials. While super…
Atomic-scale mapping of superconductivity in the incoherent CDW mosaic phase of a transition metal dichalcogenide
Sandra Sajan, Haojie Guo, Tarushi Agarwal +6
The emergence of superconductivity in the octahedrally coordinated (1T) phase of TaS2 is preceded by the intriguing loss of long-range order in the charge density wave (CDW). Such…
Evidence for ground state coherence in a two-dimensional Kondo lattice
Wen Wan, Rishav Harsh, Antonella Meninno +6
Kondo lattices are ideal testbeds for the exploration of heavy-fermion quantum phases of matter. While our understanding of Kondo lattices has traditionally relied on complex bulk…