[PDF] Top 20 Conductance and polarization in quantum junctions

... the conductance of an “almost infinite” system, but rather to be able to extract the conductance of an infinite system from a calculation for a sufficiently large but finite ... See full document

... Pt–PDI–Pt junctions and the quantum transport code SMEAGOL [20, 22, 23] to study their electronic transport ...plus polarization basis set is constructed for the carbon, nitrogen and hydrogen atoms, ... See full document

... the quantum conductance staircase as distinguished from the internal ...with quantum point contact (QPC) inserted as a result of the local disorder in the δ-barriers heavily doped with boron (Figure ... See full document

... Time-dependent density-functional theory extends the domain of ab-initio calculations to sys- tems carrying a current, but relies on the accuracy of the exchange-correlation energy functional of the electron density (at ... See full document

... transmission through spin-down channel equals zero. The degree of spin polarization (g) increases to 0.99 in “zig-zag” nanowire (see Fig.2, solid green line). Thus our transmission spectra calculations revealed ... See full document

... The electronic structure and the transport properties have been calculated with the ab initio transport code SMEAGOL, 16 which combines the non-equilibrium Green’s function 17 formalism with density functional theory. 18 ... See full document

... perovskite junctions with ‘long’ or ‘short’ sites in ...the conductance of the latter is higher than that of the former over a wide energy range (see Supplementary ...the conductance measured at the ... See full document

... ferroelectric polarization forms a structure more complex than simple textbook Kittel type domains 1–4 ...walls, polarization curling is enhanced by the flexoelectric response to strain gradients 5 ; whilst ... See full document

... ⫽ 20/1.6. Applying the S-matrix formalism instead of the computationally more complicated time-dependent BdG for- malism, we are able to study a larger part of the parameter space where we also consider a barrier 共 with ... See full document

... Unknown quantum electronic conductance across nanojunctions made of silicon-doped carbon wires between carbon leads is ...the quantum conductance for the propagating σ , π , and σ ∗ electron ... See full document

... between quantum mechanics and general relativity ...N-particle quantum system will change its nature to general relativistic one in the N + 1-particle case when the transition point, corresponding to a ... See full document

... cotunneling conductance closely follows the well-known quadratic dependence [13] on the applied bias ...cotunneling conductance in the case of a triplet is found not only generally larger than the singlet ... See full document

... and quantum algorithms which have a duality property: roughly, either the algorithm provides some nontrivial improvement over random or there exist many solutions which are significantly worse than ...The ... See full document

... In classical theories an electron was assumed to be well localized. However, in the quantum mechanics theory electrons are described by wave functions, indicating the probability of the presence of an electron. If ... See full document

... Gap junctions (GJs) form between adjacent cells to provide a low-resistance pathway for direct cell-cell communication via the exchange of chemical signals and electrical current (Carter and Ogden ...Gap ... See full document

... tight junctions also occur in other nontransformed ...intercellular junctions between cells could facilitate separation, spreading, and migration of epithelial cells during ... See full document

... and quantum inter- ference effects in a double-AB interferometer in series consisting of five quantum dots in the case of symmetric dot-electrode tunneling couplings are studied by using Green’s function ... See full document

... and quantum emitters, including single photon sources[9–13] and entangled photons[14–17] with electrical ...as quantum dots (QDs), multiple-concentric quantum rings[5,10,35–40], coupled structures ... See full document

... the conductance of NWN below the plateau level, gives us the possibility to access to multi-storage levels in which the retention of the information is directly related to the amount of current flown within the ... See full document

... metal/semiconductor junctions, transistors and interconnects, can now be formed from patterned sheets of ...and conductance of graphene nanoribbons and metal/semiconductor junctions are obtained ... See full document