Modification of the conductance of single fullerene molecules by endohedral doping

Abstract

Rights

Charge Transport in C60-Based Dumbbell-type Molecules: Mechanically Induced Switching between Two Distinct Conductance States

“…The value obtained in this work is also rather close to the results found in the literature for pristine C 60 immobilized between gold nanoelectrodes in air (log(G/G 0 ) = -1.00) 58 and vacuum (log(G/G 0 ) = -1.00 and log(G/G 0 ) = -0.70) 29,61 but significantly higher than other reference 27 (log(G/G 0 ) = -3.60). Our value is, on the other hand, lower than the conductance of C 60 trapped between copper (log(G/G 0 ) = -0.87 to 0.18) , 54,55,59,60,[62][63][64] platinum (log(G/G 0 ) = -0.15) , 65 and silver (log(G/G 0 ) = -0.30) 61 electrodes.…”

“…27 all observed values are in the range log(G/G 0 ) = -1.0 to 0.2. 29,37,54,55,[58][59][60][61][62][63][64][65] The difference in conductance (up to factor of 20) 55 of these distinct states is, however, much lower than that one of the two well-discernible G H 1 and G L 1 features that we resolved for 1 (compare blue and red trend lines in Figure 4). We suggest therefore that different contact geometries of the C 60 anchoring groups cannot account for the existence of these two distinctly observed conductance states of molecule 1.…”

Probing photoelectron multiple interferences via Fourier spectroscopy in energetic photoionization ofXe@C60

“…In that work it is shown that the interference between pathdiffered direct and reflective ionization amplitudes induces these oscillations whose frequencies in the momentum space are directly the path differences [Eq. (9)]. The path difference between spherical direct and spherical reflected waves is always twice the radius R of the hull, simply because, no matter what direction one looks from the center, a component of the direct wave that returns travels an extra path of R ongoing + R return = 2R = D [33].…”

“…However, particularly interesting photoeffects are expected when an atom or a molecule is placed inside a fullerene, forming an endohedral compound. These nanomaterials of promising technological applications [5][6][7][8][9][10] have not only been synthesized in the laboratory [11,12], but were also found in the astrophysical environment [13]. Although a large number of theoretical studies [14][15][16][17][18][19][20][21][22][23] have been devoted to the photoresponse of the atom in endohedral captivity, there exist total photoionization cross-section measurements for only a few lanthanide endohedrals [24][25][26][27][28], * himadri@nwmissouri.edu besides a very recent experiment with the Xe@C 60 + ion [29].…”

Electron transport through single endohedral Ce@C82metallofullerenes

“…Based on these interests as well as the unique characteristics of single fullerene molecule junctions, electron transport through a single metallofullerene molecule has been investigated by several groups. [15][16][17][18][19] Senapati et al investigated the electronic structure and electron transport through a single Gd@C 82 molecule using theoretical calculations. 15 The conductance of the single Gd@C 82 molecule junction was found to be smaller than that of C 82 due to the reduction of the transmission of the conducting channels caused by the charge localization.…”