Science Advances

Supplementary Materials

This PDF file includes:

  • Details of quantum mechanical calculations within the TDDFT
  • Fig. S1. Effective one-electron potential (A) and ground-state electron density (B) calculated with density functional theory for the cylindrical NMs with different gap sizes.
  • Fig. S2. Frequency-dependent absorption cross section per unit length calculated with the TDDFT for the infinite cylinder with radius R = 61 Å.
  • Fig. S3. Dependence of the absorption spectra of the cylindrical NM (A) and spherical dimer (B) on the size of the plasmonic gap.
  • Fig. S4. Effective one-electron potentials (A) and Hartree and exchange correlation contributions to the one-electron potentials (B) calculated with density functional theory for cylindrical NM (R1 = 41.3 Å, R2 = 47.7 Å, R3 = 61 Å) with a bias applied between the core and the shell.
  • Fig. S5. (A to D) Electron dynamics triggered by the bias applied between the core and the shell of the cylindrical NM (R1 = 41.3 Å, R2 = 47.7 Å, R3 = 61 Å).
  • Fig. S6. Applied bias dependence of the absorption cross section per unit length calculated for the cylindrical NM (R1 = 41.3 Å, R2 = 47.7 Å, R3 = 61 Å) using the TDDFT (A and B) and QCM (C) approaches within the frequency range corresponding to the bonding hybridized plasmon mode.
  • Fig. S7. Applied bias dependence of the absorption cross section per unit length calculated with the TDDFT for the cylindrical NM within the frequency range corresponding to the plasmon mode with core character.
  • Fig. S8. Time evolution of the effective bias triggered by the slowly varying external potential applied to the spherical dimer.
  • Fig. S9. Time evolution of the induced dipole (A) and the effective bias (B) calculated with the TDDFT for the cylindrical NM in response to the illumination by the “probe” pulse and sudden change in the applied bias.
  • Fig. S10. Current-voltage characteristic of the cylindrical NM (R1 = 41.3 Å, R2 = 47.7 Å, R3 = 61 Å).
  • Additional calculations for different sizes of gap S
  • Fig. S11. Applied bias dependence of the absorption cross section per unit length calculated with the TDDFT for the cylindrical NM (R1 = 41.3 Å, R2 = 47.7 Å, R3 = 61 Å).
  • Fig. S12. (A and B) TDDFT calculations for the spherical dimer with a gap of S = 5 Å.
  • References (45–61)

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