interface statesquantum gatesquantum Hall effectLow-temperature conductance measurements of strongly coupled ballistic one-dimensional (1D) wires show the formation of bonding and antibonding 1D states. Two parallel 1D wires are defined by a split-gate structure deposited on a GaAs/AlGaAs double quantum...
As we’ll see, it’s quite common for electrons to occupy antibonding states – albeit for brief periods of time – without the molecule being destroyed. Electrons are small (1/1840 the mass of a proton) and nuclei are heavy; an electron can zip up to an antibonding state and back down...
A pseudogap in the electronic energy density of states at the Fermi level separating the bonding and the antibonding states indicates significant electronic stability of tetragonal TaX (X = P, As).The reflectivity spectra show almost non-selective behavior over a wide range of photon energy ...
We perform a systematic exact diagonalization study of spin-orbit coupling effects for stationary few-electron states confined in quasi two-dimensional double quantum dots. We describe the spin-orbit-interaction induced coupling between bonding and antibonding orbitals and its consequences for magneto-optic...
The energy difference between HOMO and LUMO is called the band gap. It is also known as the “forbidden gap”, “energy gap”, or “fundamental energy gap”. In the case of the conducting polymer, the bonding and antibonding π-orbitals of the sp...
Of these 7 orbitals in the As7 cage, one is for the lone-pair on As(i), and the remaining 6 are again three pairs of constructive/destructive combination between two As3 triangles (front versus rear). The three orbitals for each As3 are in a typical bonding/nonbonding/antibonding ...
dxy, dxz, and dyz are directed between the ligands. Which set is lower in energy? Crystal Field Theory The average energy of the d-orbitals in the present of the octahedral field is greater than than of the free ion. Energy difference between the two sets is equal to O. ...
The interpretation of these SN and SeN containing structures has been an outstanding challenge for some time. The antibonding (π*) singly occupied molecular orbital (SOMO) of the radical is the source of two-electron multicenter bonding (2e/mc). Preferred conformations thus can be traced back ...
We can clearly see the pairing of orbitals into bonding and antibonding. The sum of the occupation numbers for each such pair is very close to 2.0. Most strongly occupied are the two ReCl bonding orbitals, which involve the 5dxz-metal orbital. The two orbitals are mainly located on the Cl...
Applying unrestricted Hartree-Fock calculations we found a peak on the density of states curve at position corresponding to the experimental peaks. In the present experiment using Cu Kβ radiation almost identical results were obtained. In the latter spectrum two additional peaks, attributed to the ...