Correlated magnetic and transport properties in the charge-density-wave states of VSe2

Strain engineering a 4a×√3a charge-density-wave phase in transition-metal dichalcogenide 1T−VSe2Zhang1, Ha2, Baek3 et al. 2017Phys. Rev. Materials513340View full textAdd to dashboardCite

“…X-ray diffraction measurements shown in Fig. 1(e) verify the 1T crystal structure with a slightly smaller lattice constant along the c -axis, c film = (0.590 ± 0.001) nm [53] compared to bulk crystals, c bulk = 0.611 nm [46,63,64]. Cross-sectional high-resolution transmission electron microscopy (HRTEM) measurements of a specimen with a thickness of 80 layers (≈ 47 nm) are shown in Figure 1(b).…”

Solid-state selenium-77 NMR

“…The majority of solid-state 77 Se NMR investigations have primarily focused on the Group 5 diselenides. Vanadium diselenide, 1T-VSe 2 , possesses a structural phase transition accompanied by charge density waves (CDWs) at 110 K, and 77 Se NMR has shown both a local maximum in the Knight shift [252,253], as well as an increase in line width with decreasing temperature below this transition temperature [253]. 2H-NbSe 2 like 1T-VSe 2 , has a structural phase transition accompanied by CDWs that can be detected by 77 Se NMR line broadening below the transition temperature; however, the transition occurs at a temperature of 31 K [253,254].…”

Three-Dimensional Fermi-Surface Nesting in 1T-VSe2Studied by Angle-Resolved Photoemission Spectroscopy

“…Layered transition-metal dichalcogenide (TMDC) 1T-VSe 2 shows charge-density-wave (CDW) transition at T c ¼ 110 K, accompanied by distinct anomalies in the transport, 1) thermodynamic, [1][2][3] magnetic, 1) and spectroscopic [4][5][6][7][8][9][10][11][12][13][14] properties. X-ray and electron-diffraction experiments 15,16) provided an evidence for a periodic lattice distortion (PLD) below T c , by observing the 4 Â 4 superlattice spot within the layer.…”