10 papers
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…
Four-layer charge density waves and chirality in CsVSb
Fernando de Juan, Mark H. Fischer
The kagome superconductor CsVSb is the only one in the AVSb family (A=K,Rb,Cs) that shows a charge-density-wave (CDW) ground state competing with…
Ferroaxial and nematic transitions in the charge density wave phase of 1T-TiSe
Sarah Edwards, Elliott Rosenberg, Ilaria Maccari +9
Charge density waves (CDWs) with multi-component order parameters can break unexpected symmetries through the interplay of nearly degenerate instabilities. In the widely investigat…
Optical probes of two-component pairing states in transition metal dichalcogenides
Miguel-Ãngel Sánchez-MartÃnez, Daniel Muñoz-Segovia, Fernando de Juan
Signatures of unconventional superconductivity have been recently observed in certain transition metal dichalcogenides (TMDs), including 4H-TaS and monolayer 2H-NbSe. W…
Layer-selective Cooper pairing in an alternately stacked transition metal dichalcogenide
Haojie Guo, Sandra Sajan, Irián Sánchez-RamÃrez +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…