Fig. 4: Characterization of the different temperature scales in 1T-TiSe2.
From: Incoherence-to-coherence crossover observed in charge-density-wave material 1T-TiSe2
a Merged image and b the temperature dependence of EDCs taken at the \(\bar{{\rm{M}}}\) point. The EDCs taken at different temperatures were merged into an image to highlight the spectral changes. The dashed line illustrates the Tcdw of 1T-TiSe2. c Resistivity temperature curve and the temperature dependence of the energy position of v (Ev). The resistivity data were normalized using the resistivity taken at 300 K. d Merged image and e the temperature dependence of MDCs taken at EF. The dashed line illustrates the incoherent-to-coherent transition temperature (T*) at ~165 K. f The temperature dependence of the full-width-half-maximum (FWHM), and the slope of the left edge of the MDC peak. g Merged image and h the temperature dependence of EDCs taken at the Fermi crossing of the c2/c3 band. i The temperature dependence of the FWHM and the slope of the left edge of the EDC peak. The red lines in b, e and h highlight the two characteristic temperatures at ~205 and ~165 K. The fitting results of the MDC/EDC peaks and the slope of their left edges are illustrated using blue shaded areas and red dashed lines in (e) and (h). The error bars in c, f and i are estimated based on the uncertainties of the fitting process. All data were taken in the lightly doped sample (~39 s).
