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...
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...
When metal atoms collect together to form metal, the atomic orbitals overlap form molecular orbitals which range from completely bonding to completely antibonding. These MOs can be separated into conducting and non-conducting bands with as many energy levels as there are electrons. If a material has...
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 ...
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...
Note that there is a 4dz2−pz antibonding orbital in Mo–S bonds near the Fermi level because Mo’s 4d band is partially filled, and this orbital can result in large electron transfer in a way similar to π-backbonding in organic chemistry53. Our DFT calculation confirms the partially ...
When graphite is doped with electrons, carbon-carbon bonds lengthen and Raman-active phonons soften as antibonding states fill. However, in semiconducting ... ER Margine,PE Lammert,VH Crespi - 《Physical Review Letters》 被引量: 10发表: 2007年 Phonon Spectroscopy by Electric Measurements of Coupl...
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 ...