Slow long-range decay of bound Hartree-Fock orbitals and enhancement of the exchange interaction and tunneling

Details Slow long-range decay of bound Hartree-Fock orbitals and enhancement of the exchange interaction and tunneling Slow long-range decay of bound Hartree-Fock orbitals and enhancement of the exchange interaction and tunneling

2008-08-15

arxiv.org/abs/0808.2084v1

Physics

Condensed Matter

Materials Science

Scientific paper

Exchange interaction strongly influences the long-range behaviour of localised electron orbitals. It violates the oscillation theorem (creates extra nodes) and produces a power-law decay instead of the usual exponential decrease at large distances. For inner orbitals inside molecules decay is 1/r^2, for macroscopic systems cos(k_f r)/r^n, where k_f is the Fermi momentum and n=3 for 1D, n=3.5 for 2D and n=4 for 3D crystal. Slow decay increases the exchange interaction between localised spins and the under-barrier tunneling amplitude.The under-barrier transmission coefficients in solids (e.g. for point contacts) become temperature-dependent.

Affiliated with

Also associated with

No associations

Rating

Slow long-range decay of bound Hartree-Fock orbitals and enhancement of the exchange interaction and tunneling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Slow long-range decay of bound Hartree-Fock orbitals and enhancement of the exchange interaction and tunneling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slow long-range decay of bound Hartree-Fock orbitals and enhancement of the exchange interaction and tunneling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-650591