Ultrafast Band-Gap Renormalization in Bilayer Graphene

The photoemission spectra from different tr-ARPES measurements are provided in ZIP files. These files contain photoemission spectra at each pump–probe delay, the corresponding pump–probe delay list, and a ReadMe.txt file with instructions on how to use the data to reconstruct the measurements. BLG_K_photoemission_spectra.zip BLG_KM_photoemission_spectra.zip MLAg_K_photoemission_spectra.zip MLAg_M_photoemission_spectra.zip MLG_K_photoemission_spectra.zip Transient text files provided outside of the raw ZIP files correspond to data at the respective pump–probe time delays listed in pump_probe_delay.txt. For clarity and traceability, the following list links the data sets to the figures presented in the journal. Main Text Figure 2: Non-equilibrium carrier and interlayer charge transfer dynamics. A. Photoemission spectra of BLG: BLG_K_photoemission_spectra.zip B. Photoemission intensities in regions R1–R3: BLG_photoemission_intensity_R1.txt / BLG_photoemission_intensity_R2.txt / BLG_photoemission_intensity_R3.txt C. Electronic temperature: ele_temperature.txt D. Photoemission spectra of MLAg: MLAg_K_photoemission_spectra.zip E. Band shifts in BLG and MLAg: BLG_phi_bi.txt / MLAg_phi_bi.txt / BLG_MLAg_phi_bi.txt Figure 3: Ultrafast band renormalization in BLG. A-C. Photoemission spectra of BLG: BLG_K_photoemission_spectra.zip D. Photoemission spectra of BLG: BLG_KM_photoemission_spectra.zip E. Band shift in BLG of pi_0 in the regions R3-R4: BLG_pi0_bandshift_R3.txt / BLG_pi0_bandshift_R4.txt / BLG_pi0_bandshift_R5.txt F. Interlayer potential asymmetry: U_exp.txt Figure 4: Single-back-gate model and non-equilibrium dielectric response of BLG. A. Photoemission spectra of BLG: BLG_K_photoemission_spectra.zip B. Interlayer potential asymmetry and single back gate model: U_mod.txt / U_exp.txt C. Photoemission spectra of BLG: BLG_K_photoemission_spectra.zip D. Relative permittivity: eps_reff.txt / BLG_screening_photoemission_intensity_R1.txt / BLG_screening_photoemission_intensity_R2.txt Supplementary materials Figure S1: Interlayer potential asymmetry of BLG. Interlayer potential asymmetry of BLG: BLG_KM_photoemission_spectra.zip Figure S2: Rigid band shifts in MLAg in BLG/MLAg/6H-SiC(0001) and in MLG in the reference heterostructure MLG/MLAg/6H-SiC(0001). A. Photoemission spectra of MLAg at M: MLAg_M_photoemission_spectra.zip B-C. Photoemission spectra of MLG at K: MLG_K_photoemission_spectra.zip Figure S3: Analysis of the band renormalizations of 𝜋0 and 𝜋1 band in BLG. A. Energy density curvesn (EDC): BLG_KM_photoemission_spectra.zip / EDC_0fs.txt / EDC_150fs.txt / EDC_300fs.txt / EDC_400fs.txt B, D. Energy density curvesn (EDC): BLG_KM_photoemission_spectra.zip C. Photoemission intensity of BLG at K: BLG_pi0ast_photoemission_intensity_below_mu_e.txt Figure S4: Interlayer coupling in BLG. A. Photoemission spectra of BLG: BLG_KM_photoemission_spectra.zip B. Band shift in BLG of pi_1 in the regions R3-R4: BLG_pi1_bandshift_R3.txt / BLG_pi1_bandshift_R4.txt / BLG_pi1_bandshift_R5.txt