Fig. 2: CDW transition in K0.3MoO3.
From: Band-selective Holstein polaron in Luttinger liquid material A0.3MoO3 (A = K, Rb)
a Temperature evolution of the band dispersion along the \(\bar{\varGamma }-\bar{Y}\) direction. The black arrows indicate the CDW gap opening below TCDW ≈ 183 K. The dashed lines indicate EF. b, c Energy distribution curves (EDCs) near Fermi momenta of B (b) and AB (c) bands at different temperatures showing the CDW gap opening below TCDW. The dashed lines indicate EF. d CDW gap as a function of temperature. The CDW gap is determined by the shift of the EDC leading edge with respect to the spectrum at high temperatures. The error bars are determined by the combination of energy resolution and deviations between samples. The red dashed line is the fit to the BCS-type gap equation. Data were collected with a linear-horizontally polarized laser at 7 eV.
