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A Novel $\sqrt{19} \times \sqrt{19}$ Superstructure in Epitaxially Grown 1T-TaTe₂

The spontaneous formation of electronic orders is a crucial element for understanding complex quantum states and engineering heterostructures in 2D materials. A novel $\sqrt{19} \times \sqrt{19}$ charge order in few-layer-thick 1T-TaTe₂ transition …

Z₂ nontrivial topology of rare-earth binary oxide superconductor LaO

Recently the superconductivity has been discovered in the rock-salt structured binary lanthanum monoxide LaO through the state-of-the-art oxide thin-film epitaxy. This work reveals the normal state of superconducting LaO to be a Z₂ nontrivial …